roll coal
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
To emit sooty exhaust fumes from a modified (diesel) engine (fad among anti-environmentalist American truck drivers).
Register: slang
Where it’s used:
Used
American English
Examples
“Why don’t you go live in Sweden and get the heck out of our country,” Mr. Blue wrote.” I will continue to roll coal anytime I feel like and fog your stupid eco-cars.”
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “roll coal” mean?
To emit sooty exhaust fumes from a modified (diesel) engine (fad among anti-environmentalist American truck drivers).
Is “roll coal” formal or informal?
roll coal is generally slang.