Jerk Shack 

An establishment that claims to be a massage parlor or massage therapy center, but ultimately specialized in performing masturbation (Hand-Jobs, Happy Endings) following the massage. This service is typically performed by a female masseuse on a male customer. But can performed via male on male.

Hey Bill, what was the name of that jerk shack that you went to last weekend?

Jerk Shack by thumpr033 April 26, 2011

Jerksack 

noun, the bag of skin which holds your testicles, thus containing several drain babies, or even the potential for human life

Before my hot date, I think it's best that I empty my jerksack.

Jerksack by Hot Rocks December 9, 2008