thumper
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Meaning · English
A single-cylinder engine, especially four-stroke engines or those with large engine displacements.
Register: slang
Where it’s used:
Used
American English
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 2
Meaning · English
Something big, such as a lie; a whopper.
Register: slang
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “thumper” mean?
A single-cylinder engine, especially four-stroke engines or those with large engine displacements.
Is “thumper” formal or informal?
thumper is generally slang.