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!
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.
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.
A flap of skin, similar to a nutsack (without the nuts), that dangles from the inside of the asshole to the outside.
Be careful not to sit on your butt sack. That would be painful.
The resulting moistness of your ball-bag after fucking somebody with a Soggy Pouch.
I wish I hadn't fucked that rough bird last night. She had a proper Soggy Pouch so my balls went in and now I've got a Soggy Sack.
It is where you launch your nut from your tip into your belly button as a game. If you make it in, you will hear a little *cha-ching* as a reward!
Are you Hack Sacking son?....*cha-ching*