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1.
A fart that is one single loud explosion. A very loud and if not controlled properly, could hurt the shooter.
Damn Lenny, did you hear that butt rifle?
by Nick Weismiller September 12, 2005

Words related to butt rifle

ass butt buttsex gay rifle
 
2.
When all your friends catch you Scoping other guys asses all the time. Very shameful, but it does happen.
Guy#1: "Hey, stop checking out guys`s asses"

Guy#2: "Im not, I was..."

Guy#1: "Yeah whatever, butt rifle"
by Swayy April 23, 2010