When a male inserts his penis AND testicles into the urethra of another male, causing the receiving male to have a "fat sack".
Guy 1: Honey,I want myself in you, but I'm tired of just anal
Guy 2:Okay, let's give me the fat sack.
Guy 2:Okay, let's give me the fat sack.
by Ballsballsballssack February 22, 2010
by IMadeThisToProveAPoint August 30, 2018
by mtab_baller May 28, 2007
Wacko:(standing shirtless working out)I love working out
Ed: (standing naked)I love my sack on people's backs
(jumps on Wacko's back, and his sack is on Wacko's back, thus giving him sack back)
Wacko: God damn it Ed!
Ed: Gotchya Wacko!
(Proceeds to kick Wacko in the ass twice)
Ed: (standing naked)I love my sack on people's backs
(jumps on Wacko's back, and his sack is on Wacko's back, thus giving him sack back)
Wacko: God damn it Ed!
Ed: Gotchya Wacko!
(Proceeds to kick Wacko in the ass twice)
by I Cruuuuuuuuuuuuuuuuuuunch you May 24, 2009
by IMAFATBALLOFFAT November 29, 2018
by Whomst October 27, 2017
The assault of one's testicles from behind. Generally, the victim is bent over, however a standing attack up the legs is also commonplace.
Often times, the assailant will yell "back sack attack!" either at contact, or after the strike is complete.
Often times, the assailant will yell "back sack attack!" either at contact, or after the strike is complete.
Winding up for a kick, Ben positioned himself behind a bent-over Matt. Using mostly the flick of his foot unto the scrotum, Ben yelled "Back sack attack!" before Matt ever got the chance to react. Devolving into his fetal position, Matt sat writhing in pain.
by MrPistachio February 09, 2013