WordReference Random House Unabridged Dictionary of American English © 2025
Key′stone Kop′
(kop),USA pronunciation
- Show BusinessUsually, Keystone Kops. (in early silent movies) a team of comic policemen noted for their slapstick routines.
- Also, Key′stone Cop′. a person noted for bungling inefficiency:a backfield of Keystone Kops.