The act of thrusting the man junk so far into a woman's (or man's if you are homosexual) anus multiple times that the balls consistently slap against the "host's" butt cheeks making a sound like a great high five.
KirtKanReed: "i am soo hungover bro, i can't remember anything about last night."

ChadKant: "you wouldn't want to."

Zenovia's Playa: " YEAH! BECAUSE CHAD GAVE YOU THE sack whack on the back crack WHILE YOU WERE SHIT FACED DRUNK LAST NIGHT AND PASSED OUT ON THE COUCH!"
by Zenovia's Playa June 14, 2009
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A common response to someone who is acting a fool and simulatenously impeding on your space by constantly riding and insulting you. Often accompanied by the phrase "and get off my nuts" as well as a two finger (usually the index and middle together) flex to the sky and a cracking noise administered by one's mouth.

A comeback to one who is using you as the constant butt of their jokes and chides.

A signal phrase to someone that they need to settle down and stop acting like a self smoke.
After hearing Scottie runs his mouth at the party all night Nick said "crack your wig back and get off my nuts."
by Falahee November 28, 2007
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A female whose life revolves around fucking over those she knows and doesn't even know and denies the obvious such as stealing your belongings while this loser crack back reject is wearing your very stylish clothes and in possession of your personal belongings.

This snake has no morals or conscience and lies thru the very cracked back where a real human possesses a spine.
That crack back where is wearing my clothes bc those jeans and tank top were in the RV I assume she hand a hand in stealing. She is a real snakey crack back never going to be anything solid in her life!
by Karmas servd best ICECOLD November 7, 2018
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back crack, back crack it’s the crack that smiles back with things and knick nacks too.
by thankiest thanker March 22, 2022
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