From a drug induced study session with several linguists somewhere in Arizona.
Bust-Cap, an exclusive language used when all other attempt at a covert language has failed, and the chick thinks she knows whats going down.
"Bust cap a whackin'"
"Bust it"
"Fuckin' DT times like 20, YK till tommorow morning"
"Chinnie!"
by Justyn March 15, 2005
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Shooting firearms, either for fun or practice, or in a violent altercation.
"Man, I'm bored. Let's go down to the range and bust some caps."

"As soon as the hajiis tripped the mine, we all started busting caps to port. I fired three magazines before we cleared the block."
by LowProfile88 July 25, 2009
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when da niggaz be bustin capS!!
shooting bullets from their Puny handguns. I will whip out my AT4 and blow all their gangsta azzes to hell. While my buddy snipes em from up in a high window
by SlasheR September 27, 2003
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To fire a gun (military slang from the days of percussion cap and ball firearms before the manufacture of individual cartidges consisting of a metal casing holding a bullet, gunpowder and a primer that fired when struck by a firing pin or hammer.)
We heard some people busting caps a couple of klicks up the trail.
by jeff August 14, 2004
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This is not a new phrase as much of the Rap culture would like us to believe. Instead it is an old phrase to shoot someone. Reference to cap is a word for powder cap used in percussion guns popular in the old west. This phrase is used in the 1969 movie titled "True Grit" with John Wayne, Glen Campbell, Dennis Hopper and Robert Duvall.

Line by Ned Pepper (played by Robert Duvall) "I never busted a cap (bust a cap) on a woman or nobody under sixteen. But I'll do it."

by J Keto March 10, 2008
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I found this reference to "bust a cap" in a 1951 Gene Autry novel. Gene Autry and the Golden Ladder Gang by W. H. Hutchinson. Whitman 2349
"I guess it is," said Pres as he regretfully fondled the stock of his rifle, "but I surelee hope that somebody gives me a little excuse to bust a cap in their direction."
-- Gene Autry and the Golden Ladder Gang 1951
by Nick Boxtop March 17, 2018
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