Sleepsterbation 

The act of Sleepsterbation is not under much debate. Although some believe it to be a myth, The truth behind the hidden art of Sleepsterbation lies in the cycle of sleep known as "rapid eye movement" (or REM.) While many can not control their physical movement while in this dream state, some "seasoned veteran's" are more adept at controling basic arm movements such as wiggles or sudden jerks. While not actually masterbating, the sudden jerks or wiggling of the arm causes the practitioner to become aroused and have a nocturnal emission.

Most consider it to be nothing more then a wet dream.

Sleepsterbation is a wonderous thing.

Sleepsterbation by Kid Knux June 26, 2006

Sleepsterbaiting 

When one masturbates while asleep, similar to sleepwalking, only more messy

Bob:"Man, family breakfast was so awkward this morning"
Henry:"Why?"
Bob:"I guess my mom walked in on me sleepsterbaiting again"
Henry:"Wow, even in your sleep your the horniest person I know"

Sleepsterbaiting by needledick3000 February 28, 2011

sleepsterbating 

The act of masturbating from the minute you wake up just to fall back to sleep once again

Guy 1: why hasn't ethan woken up yet? It's noon
Guy 2: dude you know he's sleepsterbating, he's going to out for a while

sleepsterbating by FrostbiteXP November 30, 2015

sleeperbation 

When you wake up from a dream and find you're rubbing one out in your sleep.

I woke up from an orgasm last night after a sleeperbation session.

sleeperbation by BadWolf1337 April 22, 2014

sleepturbation 

the important art of jacking off while sleeping

I was really tired, so I fell asleep. During my nap, my girlfriend walked in and I was sleepturbating. Boy did I hear that the rest the evening.

Sleepturbation ruins the fun of jacking off. Waking up with cum stains and no porn really fucks up my parade.

sleepturbation by Ilovecocaine June 2, 2015