The act of self-pleasuring unconsciously, while sleeping or dozing. Usually with/on a pillow or blanket.
"Wow. I must be hornier than I thought. From the look of my throw pillow, I totally sleepturbated last night."
by helamonster December 17, 2013
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The act of unknowingly masturbating while sleeping, often to the discomfort of your bed partner. Not usually remembered the following morning.
Lady: Sorry I couldn't help you out last night... I had a headache.

Dude: Whaddaya mean?

Lady: Oh, you don't remember? You woke me up three times last night, you were sleepturbating.

Dude: Oh, I'm sorry. I had no idea.
by emuishere December 21, 2009
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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.
by Ilovecocaine May 31, 2015
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A verb.

Before you sleep you masturbate.
"It's been a while since the last time I sleepturbate 'coz I'm kinda busy lately."
by WittyTaki December 27, 2017
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