1. when you penetrate your penis so far into the vagina that your testicles stop you from goin deeper.
I told my friend to pound that pussy till you go balls deep.
by Drich44 December 17, 2013
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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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