Jack shack

When a inmate put his sheets around the bottom bunk to make a shack to Jack off in

Go away I'm going to make a Jack shack

by Johnny Ex con March 26, 2018

jack shack

A building which sells sex toys and porn videos and has 25 cent peep shows in the back room.

Hey mom, gimme a roll of quarters so I can go down the jack shack and rub one off.

by mws August 07, 2003

Jack off shack

the stall in a dorm or shared bathroom that you or someone else always beats their meet in.

"Has anyone seen Dan?"
"He's in the bathroom and I saw him go into the jack off shack so it'll be a while"

by lillukey August 17, 2018