The act of being completely naked while thrusting so hard that your balls sack starts smacking against your taint hard enough to make a clapping sound. It is quite and impressive party trick might I add.
Yesterday, my mom caught me doing the sack clack and she started to join in and she was really good at it!
by RkoIsLife1738 December 1, 2016

by Captain Cunt August 29, 2009

by yoloking423 December 10, 2013

Skag sack: 1 (skæɡ)
Noun, slang
noun
A skag sack is a term to describe a person in a negative manner.
The term is used to insult someone for doing something incredibly stupid. Majority of the time the person will not understand what you're saying but the term skag is generally a negative term. A good way to put someone down and leave them confused.
Noun, slang
noun
A skag sack is a term to describe a person in a negative manner.
The term is used to insult someone for doing something incredibly stupid. Majority of the time the person will not understand what you're saying but the term skag is generally a negative term. A good way to put someone down and leave them confused.
by Ohhej February 25, 2013

The Scrotum that holds Shaquille Rashaun O'Neal Testicles. Often times used in a frustrating situation.
by Shanks_Dank November 3, 2021

that prozzie was a right goer.
I Smashed her back door in all night till I fired my load from my custard sacks right in her dung box.
I Smashed her back door in all night till I fired my load from my custard sacks right in her dung box.
by Lord Gannet V March 2, 2020

Having a pimple so large on your ball sack that it appears to be a third yellow ball. The surface tension is so tight that very little pressure creates a yellow eruption of ball puss.
Last time Longinus needed me to pop his yellow sack,I got a fowl sour yellow explosion all over my face and I nearly passed out due to the smell
by Big_Balls_Richey May 15, 2015
