back crack and sack

The removal of hair from the back, nutsack and between the ass cheeks to achieve a more groomed and streamlined look. Usually done by waxing at a salon, or by various do-it-yourself means in the home setting.
Jason has been begging his girl to toss his salad, but she says she won't get near it til he gets a Back, Crack and Sack.
by Gunga Din November 14, 2004
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back of my sack

the area between the back of your ball sack and asshole
"You can lick the back of my sack."
"Justin likes to lick the leftover toilet paper from the back of my sack."
by Veeetoe April 12, 2006
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tuck your sack back

Grabbing your package and putting it in upwards of your butt cheeks.
Do Not tuck your sack back, we are Powerhouse!
by Bitty Bitt December 29, 2016
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Doing a girl from behind, once you are about to climax pretend to cum by spitting on her back, pull out, then when she turns jizz in her eye.

Little tip...Aim for the middle, you'll both of her eyes.
Spit on the back, empty the sack

She thought I emptied on her back, she wasnt to know it was spit, see turned, then boom!! I emptied my sack in her eyes, the perfect shot.
by barb heaps December 09, 2006
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Basicly a way to tell someone to chill. Used when someone is getting all worked up over something trivial, making a mountain out of a molehill.
"Damn, dude, why you trippin'? Put your nuts back in your sack and quit bein' a drama queen about it."
by Mister Priapus June 10, 2005
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Back Sack

Male equivalent of the side boob. When someone gets a glimpse of your sack from behind. The worst angle to see balls, which are quite frightening at any angle.
That asshole Carl tricked me into looking at his back sack yesterday!
by TheRealMikeD July 04, 2021
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