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
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."
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.
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Being a boring/square person, not being involved in group activities
Chris doesn’t want a shot, he’s being a proper stiff sack
A person who loves to gobble on ball sacks.
Karl's a sack goblin. He still swings from Skool Boy's sack.
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.