Ninja Sack

A prank that is pulled usually in high school by taking someone's back pack, taking everything out, turning the backpack inside out and putting the stuff back in.

Dammit! The seniors ninja sacked me again.

by YarmouthClippers June 14, 2009

FB sack

When you have balls the size of church bells to post something on Facebook that will literally piss off 8 out of 10 of your friends such that most of them unfriend you as a result.

Mich: OMG did you see Phil's post on Facebook? He literally said no wonder we are a country full of P's responding to all the democrats crying that Hillary lost to Trump. Now that's FB sack!
Pills: STD standard

by 1337c0d3d00d November 11, 2016

Skunk sack

The yeastie. Skunky smell off a man's sweaty ball sack

After a long weekend of camping I had the worst case of skunk sack!

by Stan "the sweet stink" D... June 21, 2011

sail sack

When your scrotal sack sticks to each side of inner thighsl usually due to long term sitting or swass and when you stand up it resembles the full sails of the Black Pearl.

"Man, I was working in the office all day and when I got up my sail sack had me thinking of my next vacation."

by rounder222 December 20, 2006

Whale Sack

A Whale Sack is the slang term for a whale genetal. Usually, sperm whales are called this.

Boy : look at that sperm whale
Girl : sperm whale? Thats a Whale Sack!
Boy : whats a Whale Sack?
Girl : you.

by whalesack May 27, 2014

nad sack

scrotum

My nad sack is sweaty.

by Tuset September 25, 2010

Sack and Whack

Stuffing your balls inside a vaginal cavity like packing a pipe with your thumb while jerking off onto declared body part such as stomach or back (if flexible). Also called "sack n whack".

Hey babe, mind if we sack and whack on your back while I read phrack on your mac? k thx hun.

by deadly muffin November 14, 2010