pop a cap

To discharge a firearm, usually a handgun.

"Fool, if you don't scram, I will pop a cap in your a__"

by Rockne Roll November 15, 2003

pop a cap

To shoot someone in the head

Nigga i gon pop a cap if ya keep followin me.

by D*Money September 20, 2006

pop a cap

to open a bottle cap with the genitilia of a female

I have popped a cap or two in my day.

by Charles of Wales October 12, 2003

pop a cap

to remove the cap from

strong bad's special power is popping the cap off of a cold one, or homestar's head.

by Old Man bill July 13, 2003

pop a cap

to blow a naked donkey

to perform a prosegure called milking the prostate

by In the ass October 11, 2003

pop a cap

to shove a cap off something

"I'll pop a cap in yo ass!" -Mike Zablotny

by Anonymous February 03, 2003

pop the cap

peeing early in a night of drinking thus causing you to piss more frequently throughout the night

Dude Greg don't pop the cap so early, or you will be pissing all night

by Jkruk1 January 25, 2009