(idiom, colloquial, or, slang) To fire a weapon; to shoot with a gun.
No comments yet — say something.
Add your own interpretation of "bust a cap".
Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
See all Regional & Other slang on Slangora.