sack smack 

Similar to sack tap but to a much worse degree.

instead of using a simple flick of the wrist ending with the knuckle, the assailant will use an open hand and strike using the motion of the entire arm, as opposed to a wrist flick.

Damn biatch, your sack smack made me sterile.

sack smack by orange peel April 11, 2008

sack smack 

when your running down the stairs and your sack smacks your ass.

I was rushing to class when I noticed everyone staring at me because my sack smack was so loud that everyone could hear it.

sack smack by coorreey August 14, 2006

Double Sack Taint Smack 

When two guys are fucking the same girl, one in the front and one in the back, and their timing gets messed up leading them to smack eachothers balls on the girl's taint

Me and Jim were fucking this chick the other day and he screwed up the timing and we ended up doing the double sack taint smack!

Double Sack Taint Smack by Corey3259 April 11, 2015

Smack the Sack

To masturbate at such a high speed that your hand smacks your scrotum and makes a wet smacking noise.

Yea, I used to smack the sack, but then it got to loud and my parents heard.

Smack the Sack by The Guy1 412435235235 January 10, 2009

Sack Slack

When your balls are hanging extra low.

After getting out of the hot tub I had some major sack slack, and your mother loved it!

Sack Slack by bigdaddyfatsacks January 26, 2010

Sack Stack 

A stack of sacks. A Gang Bang. A Scrotom Pole.

What started as a threesome quickly became a Sack Stack when ten more guys showed up.

Sack Stack by Alistair the Classy December 21, 2010

Milk Sack Shack

An alternate name for a strip club.

Me and Jim hit the "Milk Sack Shack" last night.

Milk Sack Shack by ClassyApple March 10, 2014