To shoot someone out of annoyance or insult,to shoot sumone for fun or to just say u will and scare them
"better watch you back cuz i hav a gun and ill bust a cap in your ass so go away cuz i have a gun and ill shoot u if u dont go away"
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1. The act of shooting someone up there dick hole

2. beating someones dick until it turns purple then giving the dick a hand job
1. Damn fool, i goin' bust a cap in yo dick!

2. Holy shit that mother fucker busted a cap in my dick last night!
by Jake Jon April 2, 2007
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to pull out ur nine and shoot u
(Whitey acting like a black)
black guy: Im gonna pull out my nine and bust a cap on his ass.
by Jordan March 15, 2005
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