buttsack 

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"

buttsack by KingOfTheBROcean July 19, 2010

Buttsack 

The loose skin on the cheeks of the buttocks.

I'm gonna rape you in the buttsack!

Buttsack by JimmyK1230 August 23, 2011

buttsack 

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.

buttsack by Sean Aske June 22, 2012

Buttsack 

When an angry wife chops off her husbands ballsack and staples it to his butthole.

Damn it my wife gave me a buttsack.

My buttsack feels so good right now.

Buttsack by leedleludd May 16, 2014

Buttsack 

A lump on someone's but that keeps growing then turns into a pimple. Sometimes it's just fun to call people that name too.

Ew babe is that a buttsack

Shut up Justin stop being such a buttsack

Buttsack by Sleepyrock December 13, 2016

buttsack 

your nutsack connected to the inside of your buttcheeks.

I went to the doctors and got diagnosed with the buttsack.

buttsack by trevorpaone May 6, 2017

buttsack 

The erection-killing shot in pornography taken from just behind and under the man's taint. The frame is filled with man ass and nutsack with only a sliver of the woman's cellulite visible.

I was just about to bust a nut and then, boom! Buttsack. Bummer.

buttsack by sleazebucket June 14, 2017