One who teabags. Can mean in real life or in a video game.
Random conversation: That guy's a total fucking sack packer.

After dieing in Halo 3: Fuck, I was killed. Fuck you you teabagging sack packer! (after seeing some noob teabagging the corpse)
by Kid Aqua December 15, 2007
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A handbag in which a whore carries her douche, tampons, cheap perfume, and vagisil to smell better in between having sex with random guys.
As Lana walked around the street corner, she swung her snatch sack in the wind.
by RadicalDelusion July 17, 2014
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The area beneath your ass/higher thigh region.
Aw man, I was riding that jet ski for so long that I got a rash on my butt sack!
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Commonly known as the “Gooch”. The buttsack is located between a males butt and his nutsack.
Bro my gurl was sucking my butt-sack all night untill I busted a fatty all over my tummy.
by Xanman1 January 9, 2020
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Literal meaning
Ball sack sticking in the butthole.

Insult

Call your friend butt sack when he is being an idiot.
John: I woke up last night to my girl giving me a butt sack

John: Dude you are being a butt sack.
by BigD4ever March 15, 2021
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