Hammer Down and Other CB Speed Phrases Explained
Hammer down is probably the most famous CB radio phrase in trucking. But it is just one of dozens of speed-related terms you will hear on channel 19. This guide covers every CB phrase related to speed, driving pace, and acceleration — with real-world examples and the etiquette behind each one.
Ahmad Qazi
Founder & CEO, O Trucking LLC
Fact-Checked by O Trucking Editorial Team
Sources:
Written by Ahmad Qazi, founder of O Trucking LLC, drawing on 9+ years dispatching for owner-operators. Learn more about us.
O TruckingHammer Down and Other CB Speed Phrases Explained (2026)
Key Takeaways
- “Hammer down” means drive at full speed or accelerate hard; “hammer lane” is the far-left passing lane.
- “Back it down” is the most important safety phrase — it means slow down, usually for a hazard or speed trap ahead.
- “Feeding the bears” means getting a ticket; bears are police, a bear bite is a citation, and a bear trap is a speed trap.
- Never broadcast your exact speed on channel 19 — use slang and always pair a speed warning with the reason and location.
- Classic CB speed phrases remain in everyday use among professional drivers in 2026 for real-time hazard and traffic warnings.
The Complete Speed Phrase Dictionary
Here is every CB phrase related to speed, organized by category. These are real terms used by real truckers on channel 19 every day across the country:
“Go Fast” Phrases
| Phrase | Meaning | CB Example |
|---|---|---|
| Hammer down | Drive at full speed | “Clean and green for 50 miles, hammer down” |
| Pedal to the metal | Accelerator fully depressed | “Had it pedal to the metal and barely made that grade” |
| Letting the hammer hang | Cruising at top governed speed | “Just letting the hammer hang through Oklahoma” |
| Running like the wind | Traffic flowing freely at speed | “Eastbound is running like the wind tonight” |
| Got it on | Up to speed and rolling | “Got it on and headed for the house” |
| Stepping on it | Accelerating / going fast | “That flatbed is really stepping on it” |
“Slow Down” Phrases
| Phrase | Meaning | CB Example |
|---|---|---|
| Back it down | Slow down (urgent) | “Back it down, bear trap at the 205” |
| Bringing it back | Reducing speed | “Bringing it back through this work zone” |
| Backing off | Slowing gradually | “Backing off — roads getting icy” |
| Shut it down | Stop completely or slow way down | “Shut it down, parking lot ahead” |
Consequence Phrases
| Phrase | Meaning | CB Example |
|---|---|---|
| Feeding the bears | Getting a ticket | “Don't end up feeding the bears tonight” |
| Bear bite | A ticket / citation | “Got a bear bite at the 180, my own fault” |
| Taking pictures | Officer running radar | “Bear taking pictures at the overpass” |
| Bear trap | Speed trap setup | “Bear trap southbound between 180 and 185” |
Phrases Evolve Over Time
How to Use Speed Phrases Correctly
Knowing the phrases is one thing. Using them correctly on the air is another. Here are the rules of etiquette for speed-related CB communication:
- Never broadcast specific speeds: Saying “I'm doing 78 in a 65” on an open radio frequency is foolish. Law enforcement monitors CB channels. Use slang: “got the hammer down” or “running with traffic.”
- Use “back it down” with context: Always state why. “Back it down” alone tells drivers to slow down but not why. “Back it down, bear at the 142” or “back it down, debris in the road” is far more useful.
- Keep speed warnings brief: The most effective speed warnings are 5-10 seconds. Direction + reason + location. That is all anyone needs. Do not ramble.
- Acknowledge warnings: A quick “10-4, appreciate it” lets the warning driver know their message was received and encourages continued information sharing on the channel.
Common CB Speed-Phrase Mistakes to Avoid
- Announcing your exact speed. Saying “doing 78 in a 65” on an open frequency can be heard by law enforcement and used against you — stick to slang like “hammer down” or “running with traffic.”
- Saying “back it down” with no reason. Without a location and cause, drivers do not know how hard to slow or what to watch for. Always add the why and where.
- Ignoring a warning you receive. When you hear “back it down,” slow immediately and look for the hazard rather than waiting to see it yourself.
- Rambling. Long transmissions tie up the channel and bury the key detail — keep speed warnings to direction, reason, and location.
Real CB Conversations: Speed Phrases in Context
Here is how speed phrases sound in actual CB radio exchanges:
Bear Warning Exchange
“Eastbound drivers, back it down at the 142 — full-grown bear in the median taking pictures.”
“10-4, appreciate it driver. Was about to have the hammer down through there.”
Clear Road Update
“Anybody westbound got a road report?”
“Yeah driver, clean and green from the 200 to the 280. No bears, no brake lights. Hammer down.”
Weather Slowdown
“Northbound on 65, you're gonna want to bring it back around the 180. Fog is thick as pea soup and there's a couple four-wheelers in the ditch already.”
The Speed Phrase Every New Driver Should Master
Speed Phrases and the Law
A common question: is it legal to warn other drivers about speed traps on CB radio? The answer is yes. Courts have consistently ruled that warning other drivers about police presence is protected speech under the First Amendment. This applies to CB radio, flashing headlights, and smartphone apps. The only exceptions are obstructing justice or helping someone actively evade arrest.
That said, broadcasting specific speeds you are traveling, especially if over the limit, is not protected and can be used as evidence. Stick to slang, keep your transmissions professional, and remember that anyone — including law enforcement — can listen to channel 19. For more on how speeding affects your CDL, see our CDL speeding consequences guide.
CB Speed Phrases FAQ
Common questions about hammer down and other CB radio speed phrases
What does 'hammer down' mean on CB radio?
Hammer down is a CB radio phrase meaning to drive at full speed or to accelerate. The term comes from the image of hammering the accelerator pedal down to the floor. It is one of the most iconic and widely recognized trucking CB phrases. On channel 19, you might hear 'hammer down' used as encouragement ('road's clear, hammer down'), a status update ('got the hammer down through Kansas'), or even a farewell ('alright driver, hammer down and be safe'). The related term 'hammer lane' refers to the left/fast lane.
What does 'feeding the bears' mean in trucking?
Feeding the bears means getting a traffic ticket — you are 'feeding' money to the police (bears). The phrase is used as both a warning and a description. As a warning: 'Don't end up feeding the bears tonight, back it down.' As a description: 'Saw a four-wheeler feeding the bears at the 205.' It is one of many bear-related CB terms. Bears are police, a bear bite is a ticket, a bear trap is a speed trap, and feeding the bears is the act of paying a fine.
What is the difference between 'hammer down' and 'pedal to the metal'?
Both phrases mean driving at full speed, but there is a subtle difference in usage. 'Hammer down' is the more common trucking-specific phrase and is used broadly — it can mean accelerating, cruising at top speed, or encouraging someone to go. 'Pedal to the metal' tends to describe the specific act of having the accelerator fully depressed, often when climbing a hill or trying to accelerate. On CB radio, 'hammer down' is heard far more frequently and is considered the standard trucker term.
What does 'back it down' mean and when should I use it?
Back it down means slow down and is one of the most important safety phrases on CB radio. Use it when you spot a speed trap ('back it down at the 142, bear in the median'), hazardous conditions ('back it down, ice on the bridge'), or any reason other drivers should reduce speed. When you hear 'back it down' on channel 19, treat it as an urgent advisory. The person transmitting is warning you about an immediate concern ahead. Always acknowledge with a quick '10-4' if possible.
What does 'hammer lane' mean?
Hammer lane is the far-left lane of a highway — the passing or fast lane. The name comes directly from 'hammer down': it is the lane where drivers have the hammer down and are moving at the highest speed. On CB you might hear 'four-wheeler camped in the hammer lane' (a car blocking the passing lane) or 'move it to the hammer lane, slow truck ahead.' For professional drivers, the hammer lane is for passing only, not cruising — many states restrict trucks from the leftmost lane entirely.
Do truckers still say 'hammer down' in 2026?
Yes. Even with smartphones, GPS, and apps largely replacing CB radio for navigation, classic phrases like 'hammer down,' 'back it down,' and 'feeding the bears' remain in everyday use among professional drivers in 2026. CB radio is still active on channel 19 for real-time hazard, traffic, and speed-trap warnings, and 'hammer down' has also entered broader trucking culture as shorthand for 'full speed ahead.' The slang endures because it is fast, memorable, and avoids broadcasting your exact speed on an open frequency.
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