Driving Jargon Buster
Demystifying UK driving school acronyms and technical terms into plain English so you always understand your instructor's guidance.
Aquaplaning
A layer of water builds up between tyres and road so the tyres lose contact; steering feels light, revs may rise; ease off the accelerator smoothly, hold the wheel steady, no harsh braking.
Blind Spots
Areas outside the car that cannot be viewed in mirrors, requiring a quick physical head turn over your shoulder.
Blocker
An informal driving-instruction term for a vehicle whose presence or movement temporarily stops another vehicle from entering a roundabout. It is not a priority rule and never gives you the right to go: always check the way is safe yourself.
BOB
Boy on a Bike. Used mainly during left and right mirror checks, to remind you to look for cyclists and motorcyclists beside or just behind you, especially on the left where it is often clear. It works together with TOM.
Bow Wave
The wave pushed ahead of a car through standing water; drive slowly and steadily so water does not flow into the engine bay.
Busy Bus
A bus pulled over at the side of the road is often busy, with people getting off who may walk out in front of it or from behind it. When you see a stopped bus, expect more pedestrians and a higher risk of someone stepping out.
Clutch Bite Point
The exact spot where the clutch friction plates meet, transferring engine power to the drive wheels to move the car forward.
COAST
Clutch Overuse And Speed Transgression. A reminder against pressing the clutch down unnecessarily while turning or decelerating.
Coasting
Allowing the car to roll with the clutch depressed or in neutral, reducing tyre grip and vehicle steering control.
Defensive Driving
Anticipating other road users' mistakes in advance and leaving ample stopping space to avoid collisions safely.
Demisting
Clearing misted glass: warm air to the screen, air conditioning on because it dries the air, recirculation off, heated rear window.
Double Walk Across (Walk Across and Back)
The rule for joining a stream of traffic, such as turning left at a T-junction with a car coming from your right. You need about twice as much time, because you must accelerate up to the speed of that traffic. The guide is that you could comfortably walk across the road and back again before the approaching car reaches you.
DSSSM (Cockpit Drill)
Doors, Seat, Steering, Seat belt, Mirrors. The universal pre-drive safety check performed upon entering the vehicle.
Engine Braking
Using a lower gear to let natural engine resistance slow the vehicle down on steep descents without overheating brakes.
Fog Lights
May be used only when visibility is seriously reduced, generally under 100 metres; must be switched off when it improves.
IPSGA
Information, Position, Speed, Gear, Acceleration. A more advanced system of car control. You may hear it from people who hold formal advanced roadcraft qualifications, or from ADIs with professional-level qualifications in driving. OAP is usually the simpler option for learners. The Information phase is where TUG (Take, Understand, Give information) fits in.
LADA Routine
Look, Assess, Decide, Act. The core cognitive decision-making cycle for evaluating junctions and hazards.
Limit Point
The furthest point along the road that you can see, where the two edges of the road seem to meet (also called the vanishing point). It shows how far ahead you can see to be clear, so it is the distance you must be able to stop within. If the limit point moves towards you or stays still as you approach a bend, the bend is tightening and you are going too fast: ease off and brake smoothly. If it moves away at the pace you travel, your speed suits the road. Only when it moves away faster and the road opens up should you speed up. Always keep your stopping distance well inside the distance to the limit point, not at the bare minimum.
Man and Van
A parked van, often a white van, usually means a workman or delivery driver is nearby and may step out. As with a busy bus, take extra care: slow down, give more space, and be wary of pedestrians stepping in front of you.
MSM / MSPSL
Mirrors, Signal, Manoeuvre / Mirrors, Signal, Position, Speed, Look. The essential routine for approaching junctions and turns.
OAP
Observation, Anticipation, Preparation. A simpler routine, better suited to learner drivers. Use it on faster roads or in town to keep scanning and planning your route ahead. Preparation means being ready to take action to reduce risk, such as lifting off the accelerator and covering the brake. On country roads, use it to scan for the limit point and always be prepared to stop.
OUT
Over, Under, Through. An advanced technique for anticipation and mitigation. Use it when approaching parked cars or other obstructions, as a tool to help make sure it is safe to drive past them.
POM Routine
Prepare, Observe, Move. The sequential safety procedure used every time you prepare to move the car from a stationary position. It is also used before every move in a turn in the road (Lesson 8A).
SCALP
Safe, Convenient, Appropriate, Legal Place to Park. Your instructor will often ask you to pull up at a SCALP place. Most of it is self-explanatory, but 'appropriate' is the one people miss: it means not stopping somewhere that causes problems for others, such as across someone's driveway. That might not be illegal, but it is not appropriate. Check all four before you pull over.
Shield
An informal driving-instruction term for a vehicle that gives some protection from conflicting traffic while creating an opportunity to proceed. Never follow it blindly: it does not guarantee other drivers will give way or that the gap will stay open.
Signal / Indicator
A signal gives information that helps another road user. Use it only when it will genuinely help someone, always check your mirrors in pairs first, and cancel it after turns or lane changes so you do not mislead others.
SIPDE
Scan, Identify, Predict, Decide, Execute. Another more advanced hazard-management system, used by some people with formal advanced roadcraft training and by ADIs with professional qualifications. For learners, OAP is a simpler way to think about it.
Six-Point Check
An optional observation routine used by the major national driving schools before moving off: left blind spot, left mirror, interior mirror, right mirror, right blind spot, then ahead. Not compulsory and not every instructor teaches it, but it builds a good habit of a continuous glance around the car.
SLOW (Speed, Look, Observation, Work)
A memory aid for reacting when the word SLOW is painted on the carriageway, often on rural lanes ahead of a junction, side road or bend. It reminds you to take four steps: Speed (ease off the accelerator and slow down if needed), Look (look well ahead at the bend or junction), Observation (increase your level of observation), and Work (work out what you need to do and act on it). SLOW painted on the road does not always mean you must slow down, but you must be very observant: take your foot off the accelerator, cover the brake, and be ready to brake if needed. It is often linked with long white lines in the centre of the road (longer than the usual shorter dashes) warning of junctions, blind bends or other hazards ahead. In an area you do not know, ease off and increase your observation.
Standing Water
Puddles and flooded patches that can hide potholes or blocked drains.
The Three S's: Swerve, Slow Down, Stop
Never pull out in front of an approaching vehicle and make it swerve, slow down or stop. If another driver has to lift off the accelerator, tap the brakes or change road position because of you, the gap was not safe. Causing someone to stop or swerve is likely to be an immediate fail on a driving test, while causing someone to slow down would definitely be a minor fault and could easily be marked as a serious or dangerous fault at the examiner's or instructor's discretion. We never want to do it at all: it is almost certainly at least a minor, and there is a very good chance it becomes a serious or dangerous fault.
Three-Bar Marker
The first of the three countdown markers before a motorway or dual carriageway exit (placed at 300 yards). At normal motorway speeds, that is the usual customary point to signal left before leaving the main carriageway.
TOM
Traffic Overtaking Me. Also used mainly with mirrors: when checking for BOB and TOM you check your left and right mirrors to make sure no cyclist is close, and nobody is overtaking or undertaking you.
TUG
Take, Understand, Give information. You take information from what you see on the road, understand what other drivers are doing (their road position, whether they have slowed or stopped, whether they have seen you), and give information, for example through your own road position. When holding back for oncoming traffic, do not tuck in too close to the kerb: stay a little out in the road so it is clear you want to go past when it is safe, leave oncoming traffic enough room, and make eye contact so you both know you have been seen. TUG is the Information phase of IPSGA, and you keep using it through the other phases too.
Turn in the Road
Turning the car around to face the opposite way using forward and reverse gears in a quiet, suitable road (sometimes called a three-point turn). No longer a formal test manoeuvre, but an essential skill every learner practises.
Walk Across, Drive Across
A rule of thumb used by approved driving instructors to judge a gap when you are crossing the path of traffic, for example turning right across oncoming cars. If you could comfortably walk across the road without rushing, you probably have enough time to drive across.
Still unsure about a term heard during a lesson?
Ask your own instructor to demonstrate and explain the routine step by step in the car.
Still hearing driving test rumours?
Separate the official test requirements from common driving myths about crossing hands, stalling and minor faults.