when one guy takes his sack and wraps it around another guys penis and he has sex with it
Matt went over to Dave's for a little sack attack
by Monkey 12 December 12, 2007

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Top Definition
To whip out one's testicle(s) and accompanying scrotum in an unsavoury manner in front of unsuspecting victims. Often done in public places, coupled with the shouting of "my bwain".
I got sack attacked by Matt in the pub last night.
by Rio Merkmeister June 10, 2006

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a death blow to the male genital area; can be done with one person or a group, results are painful and funny.
I'm friggin' sterile thanks to the guys giving a sack attack.
by shiesty February 09, 2003

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An event where a group of angry girls attack a man, aiming specifically for the scrotum with the intent of causing pain to the victim.
Today, a group of girls initiated a sack attack on a man trying to stop a fight between them. The unnamed man who was hospitalized shortly after the incident, lost one ball.
by Helladog January 12, 2014

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A person who attacks other people's sacks.
OMG gordan just sack attacked you louis.
by Rjsimpson123 July 24, 2009

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When your colleague or supervisor stands so close to you while you're seated at your desk, that their balls are resting on your shoulder
Disobedient Willidan turned and noticed that he was the unfortunate victim of a sack attack by the disapproving Huxley
by netmonkey February 20, 2009

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The act of pulling just your balls out of your zipper, then while a chick is sleeping, shoving them in her mouth
Stupid whore wouldn't let me give her the shocker so i gave her the sack attack that night
by Pimpin Is My Lifestyle March 30, 2005

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To attack one's unsuspecting victims with your bollock carriers ! Preferably attacking people in the facial region
A wolf sack attack cause a mass destruction !
by Powertime April 20, 2008

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