A surgical procedure that attaches ones saggy or taut scrotum to their rectum or sometimes the sphincter.
Ayo tracy! Billy just got himself a brand new buttsack and it is looking nice!
The vaginal flaps that flop around during extreme anal.
I was fucking a bitch last night and she had a mad buttsack
Your grandmothers ass
Youve got on a beautiful buttsack on today grandma
When another ballsack grows on one of your buttcheeks. Usually your left buttcheek.
My dad showed me his buttsack in the shower the other day.
the male version of the g-spot
Trav-"Did you hookup with smashley last night"
Jerry-"Yeah, she found my buttsack and i immediately came in her face"
your nutsack connected to the inside of your buttcheeks.
I went to the doctors and got diagnosed with the buttsack.
The loose skin on the cheeks of the buttocks.
I'm gonna rape you in the buttsack!