by D.Roc702 September 9, 2015

by qs9999 November 22, 2011

A reference to a scrotum that is very loose and elastic-like. Could occur in warm bath water or any other situation in which your privates are very warm and stationary.
by hotcarl9211 May 2, 2010

this one bitch at school who smells like shit every day and her hair is so greasy and never brushed. she always has mouldy food in her locker and she is just gross.
bestie 1: "hey whose that stinky girl with no friends?"
bestie 2: "oh thats sack"
bestie 1:"lol what a stinky sack"
bestie 2: "oh thats sack"
bestie 1:"lol what a stinky sack"
by JaZZyJeFFY May 4, 2021

An excretion of a sweaty thick substance from the sack area that smells sour. It can be found by twiddling your index and middle finger on your sack after not showering for days.
I had so much sack oil I could have swabbed the ball deck and made a candle. So much scrotum scum oil.
by swe@tymrnassy September 20, 2013

by jspoke73 March 14, 2011
