back sack attack

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.
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
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bloody spooge sack

When your spooge becomes somehow bloody, then leaks on to ur sack. It then becomes a bloody spooge sack.
EWWW Ben Affleck spooooge!!!

Whenever he beats off, he always gets a bloody spooge sack...wtf?!
by lcrimsontidel August 27, 2008
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Sack Back

When one man places his sack on another man's back. Used in the penis showing game
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)
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arse sack

alternative for bum bag, a bag which one wears atop their buttocks, (secured by a belt-like device with a clip for attachment and detachment) while running, walking, etc.
in the television series, 'the nanny', yeta wears an 'arse sack' incorrectly, and wears it on the front, hence the name 'arse sack' or 'bum bag'

"hey, mum, have you got your arse sack on yet so we can get runnin'"
by nirvana fanatic July 01, 2005
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Book sack

A weirdo way to say Bookbag or Backpack.
Troy says Book sack to purposely bleed our ears. Nails on a chalkboard.
by IMadeThisToProveAPoint August 30, 2018
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Vacuum-sacking

Inserting one's ballsack into a 'space bag' whereupon an airtight seal is achieved, essentially 'locking in' the freshness of the ballsack for others to enjoy at their later convenience.
"Dude, I was vacuum-sacking my nutsack for my girlfriend. She gets back in three months and I want to preserve all the goodness for her".
by Monagle July 29, 2011
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The Fat Sack

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.
by Ballsballsballssack February 22, 2010
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