cooper
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Meaning · English
To forge or imitate (writing).
Register: slang
Where it’s used:
Used
American English
Examples
[…] though, owing to his forged signatures having been too often detected, he was declared to be "a duffer at coopering a monekur."
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).
Sense 2
Meaning · English
To intentionally injure (a racehorse) to spoil its chances of winning.
Register: slang
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “cooper” mean?
To forge or imitate (writing).
Is “cooper” formal or informal?
cooper is generally slang.