deep butt, or deep butting, is defined by the act of taking an oversized object up the rectum. coined after a discussion on the gag reflex of the anus.
"dude, my friend was totally able to deep butt that maglite you're holding"
by Nodnarbbackwards August 29, 2008
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When a guy ass fucks a chick and his balls slap against her ass cheeks; ass fucking to the hilt
After the Saints won the Super Bowl, Reggie Bush celebrated by Going Balls Deep Butt Good on Kim Kardashian's phat ass!
by MOCO & P-Phat May 28, 2010
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