when your ball sack can stretch far enough to reach your ass.
"what the fuck is a poop sack?"
"i'll show you."
Where your poop is stored; in your butt cheeks. The more you sit, the mushier it gits.
I sat for 8 hours on that flight yesterday, so my poop sacks are really mushy. I guess I’m gonna have the squirts again.
When someone is obviously lying in a lazy way.
The person is not trying their best to hide their lie.
Amy is lyin' like a sack of rugs.
Amy lied like a sack of rugs when she said the sky wasn't blue.
To knock sacks is to slam you and a bros nutsacks together while you are doing double penetration on a girl.
Bro, me and Johnny are gonna knock sacks on Alyssa tonight.
Someone who is gross, hairy, crusty or just downright ugly
"Hey man did you see Mark last night?"
"Yeah man he looked like a walking ball sack"
(n) Boot Sack : A game played amoungst men whos rules stretch no further than the name
"hey timmy lets play boot sack!!!" timmy replied "ok but this time we are definetly using your sack and my boot
Where one, uses another’s ball sack as a speed bag
“Hey bro I was with my girl last night, and we did the ball sack attack