Trucker Speed Slang: Complete Glossary
From hammer down to back it down, granny lane to Georgia overdrive — this is every speed-related CB slang term truckers use on the highway. Learn what they mean, how they are used, and the real-world context behind each term.
O Trucking Editorial Team
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Fact-Checked by O Trucking Dispatch Team
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O TruckingTrucker Speed Slang: Complete Glossary (2026)
Speed & Acceleration Terms
| CB Term | Meaning | Example |
|---|---|---|
| Hammer down | Drive at full speed | “I got the hammer down” |
| Put the hammer down | Accelerate, go faster | “Put the hammer down and let's roll” |
| Pedal to the metal | Full throttle | “Pedal to the metal on I-10” |
| Back it down | Slow down, reduce speed | “Back it down, bear ahead” |
| Back off the hammer | Ease up on the throttle | “Better back off the hammer” |
| Running hot | Speeding above the limit | “He's running hot in the hammer lane” |
| Rolling | Moving, driving (any speed) | “We're rolling eastbound” |
| Governed | Speed limited by governor | “I'm governed at 65” |
| Georgia overdrive | Coasting in neutral (dangerous) | Not recommended — illegal in some states |
Lane & Position Terms
| CB Term | Meaning |
|---|---|
| Hammer lane | Left lane (fast/passing lane) |
| Granny lane | Right lane (slow/driving lane) |
| Travel lane | Center lane (3-lane highway) |
| Big road | Interstate highway |
| Slab | Highway pavement, the road itself |
| Bumper sticker | Vehicle tailgating you |
| Rocking chair | Middle truck in a convoy |
| Front door | Lead truck / ahead of you |
| Back door | Last truck / behind you |
Hammer Down Responsibly
The Granny Lane Is the Money Lane
Speed Slang FAQ
Common questions about trucker speed CB slang
What does 'hammer down' mean in trucking?
Hammer down means to accelerate, drive fast, or go at full speed. The term comes from pressing the accelerator pedal (the 'hammer') to the floor ('down'). It is one of the most iconic pieces of trucker CB slang, popularized by the 1975 song 'Convoy' and the 1977 movie 'Smokey and the Bandit.'
What is the 'hammer lane' vs the 'granny lane'?
The hammer lane is the left lane (fast/passing lane) on a highway — where you drive when you have the hammer down. The granny lane is the right lane (slow/driving lane) where slower traffic travels. On three-lane highways, the center lane is sometimes called the travel lane. Many states restrict trucks from using the hammer lane.
What does 'back it down' mean?
'Back it down' means slow down or reduce speed. It is the opposite of hammer down. Truckers use this phrase to warn other drivers to slow down, usually because of a bear (police) ahead, construction zone, weather, or traffic. Example: 'You better back it down, driver — full-grown bear at the 142.'
What does 'governed' mean in trucking?
'Governed' means a truck has a speed governor (electronic speed limiter) set by the carrier. When a trucker says 'I'm governed at 65,' they mean their truck's computer will not allow the engine to push the vehicle past 65 mph regardless of throttle input. Most large carriers govern their trucks between 62-68 mph for fuel savings and safety.
Smart Dispatch for Smart Drivers
Our dispatchers plan realistic schedules so you never have to hammer down to meet a deadline. Safe speeds, saved fuel, protected CDL.