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A trick played on a fellow athlete where the open hand smacks the target's testicles with the knuckles in a sharp, wrist flicking motion.
"Dude, I sack tapped Brandon, and now he has the whole team trying to sack tap me"
by Chris M July 7, 2004
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The sudden and random striking of a person's cock and balls with slight wrist action.
I sack tapped him so hard today that he fell down on the ground.
by Mattyw April 27, 2004
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Scateboarding Move:
1) Ollie out of a transition or a lip or even off the ground if you got enough hops.

2) Grab the board and pull it away from your feet.

3) Slam the board into your nuts...well you don't have to slam it.

4) Pull the board back and put it under your feet.
by EmTee April 1, 2003
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to tap a guys balls so they knock eachother. (very painful)
by gby November 13, 2006
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A form of play-fighting in which male friends gently tap each other on their testicles, not to injure, but to playfully tease each other for mutual amusement.
"Boys will be boys."

"What you mean?"

"Your boyfriend just gave mine a sack tap."

"Oh! Ha! I missed it. Boys will be boys..."
by bro-cabulary June 10, 2020
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By far one of the gayest things you can do as a male.
Walking up, and touching another dude in the balls. Your gay. No way around it. Sack Tapping is for the gays.
by TheHyde June 4, 2010
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A sack-tap is a light tap (it hurts tho!) that a fellow soccer player may do to another player, where a dude raps the sac-de-noix of another guy.
I sack-tapped Matt, and now he's got everyone trying to sack-rap me!
by USAF Cadet January 31, 2021
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