police one's brass
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
To clean up spent shell casings left behind after firing a gun, usually so the casings cannot be used to identify the gun.
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).
Common questions
What does “police one's brass” mean?
To clean up spent shell casings left behind after firing a gun, usually so the casings cannot be used to identify the gun.
Is “police one's brass” formal or informal?
police one's brass is generally slang.