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.
by USAF Cadet January 30, 2021

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.
by Chris M July 07, 2004

by Mattyw April 26, 2004

by gby November 12, 2006

by kylekulinskifan August 10, 2023

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..."
"What you mean?"
"Your boyfriend just gave mine a sack tap."
"Oh! Ha! I missed it. Boys will be boys..."
by bro-cabulary June 09, 2020

Walking up, and touching another dude in the balls. Your gay. No way around it. Sack Tapping is for the gays.
by TheHyde June 04, 2010
