1 definition by Obviously Obsessed

Slang term for the police. Originated from the popular TV show Hawaii 5-0. Commonly used as a warning that the police are nearby.
*on the phone*
S: Hello?
D: Dude, five-oh, take off.
S: What about you?
D: Uh, they kinda spotted me.
S: *hauls ass*
by Obviously Obsessed January 10, 2015
Get the Five-Oh mug.