Ball-fucking Edit Meaning

1.

"The insertion of the testicles into the anus or vagina; for many people, the testicles must be tied up at their base and the scrotum must be hanging loose for this to be possible."

*credit: Men's Health Teaching Group

After exhausting every other possible position, the two decided to engage in a raunchy night of ball-fucking.

See balls, deviant, nuts, scrotum, sack