bust a cap 

kick someones ass, or beat someone up

ima come over there and ima bust a cap

bust a cap by swapanl February 6, 2007

Bust a cap 

History of term: This refers to a toy gun for children that can be loaded with little white powder caps that create a bang sound and small amount of smoke when the trigger is pulled. The word "cap" in the term is derived from the name Capulets . one of the fueding families in the shakesperean drama Romeo and juliet. when used in the term "bust a cap" it is also refering to the theatrical and seemingly gang related interpretation of the play by high school level students.

"Bust a cap on that fool"

Bust a cap by Mr.Lex Luther March 1, 2017

Bust-A-Cap 

im gonna kick ya a$$

Girl, don't even go there, unless you want me to Bust-A-Cap :*

Bust-A-Cap by I love you May 13, 2005

Bust a cap in yo ass

To shoot an individual with a gun.

You bitch, getin all swoa, Im gunna bust a cap in yo ass!

Bust a cap in yo ass by James/Skeeter/Drex March 16, 2003

bust a cap in your ass 

The origin of bust a cap meaning to discharge a firearm has become a general threat of violence with the implication that a gun will be involved. To threaten to bust a cap in someone's ass is also not intended to be anatomically specific, as kick ass or whip your ass are not descriptive of specific actions against someone's posterior. Ass as in "your ass" "my ass" etc refers more to the whole of the physical person. Further appellations such Honky, nigga, nigger, white boy, bitch, etc. are context dependent and may not have racial or gender implications.

"I'm gonna bust a cap in yo ass" "I would never bust a cap in your ass" "Please don't bust a cap in my ass" etc

bust a cap in your ass by Doc@demon September 2, 2008

bust a cap in a nigga

to put a bullet in someone; to shoot someone

u better bust a cap in a nigga before he get away

bust a cap in a nigga by 4bebo June 10, 2008

bust a cap in yo ass

Slang for "im going to shoot you"

Byron: Your gay
Jonny: I will bust a cap in yo ass.
Byron: Try it.
Jonny:*Grabs Shotgun* Are you sure?
Byron: Yeah
Jonny: *Shoots Byron*

bust a cap in yo ass by ?? January 31, 2003