When you are long in the balls and you wear a hole in your underwear creating a stamp or cookie cutter like impression.
Justie was so long in the junk his underwear always rocked a sack stamp
A rogue walmart bag floating around the parking lot that a lonely freak stumbles upon and mangles it into a practically non-existent jizz dumpster. Very practical and quite useful as a bartering chip at local pawn shops.
Nathyam: I really want that buttplug you got behind the counter but all I have is this BANG SACK
Tyler: I've never seen a finer piece of merchandise in my life, you got any more?
Wheep: WOW! how neat, I'll have to find me one of those beauties.
The scrotum forms an admirable covering for the protection of the testes. These bodies, lying suspended and loose in the cavity of the scrotum … are capable of great mobility, and can therefore easily slip about within the scrotum, and thus avoid injuries from blows or squeezes.
"I've got a couple things for you in my gift sack."
"Here's 0-2 pitch to A-rod. Oh! And he's taken it right in the gift sack!"
The very wrinkly, old, and slimy sack of skin that swings below an old man's legs when he walks
Careful on the stairs dad, you don't want to rip your prune sack again
The overly-tight flared pants worn by ballroom dancers that are inherently designed to highlight, accentuate and "showcase" the area from the ass crack to the nut sack. Also known as nutslacks, assplants or chodehuggers. Standard slack of choice for men appearing on "Dancing With the Stars." Typically worn with a button down shirt offering only a single button, usually located at the belly-button area.
Looks like Jerry Springer is getting voted off tonight ... they've saddled him up in a pair of crack to sacks.
During a #2 your balls get out of the way by going up into your stomach so you don't poop on them.
My girlfriend tried to blow me while i was pooping but couldn't find my balls because i had meatball sack.
I just layed down a GIANT sack scraper after Taco Bell