Top Definition
one who rubs themselves in their 'special place' while sleeping. The purpetrator is usually completely unaware of his jolly good time in the morning.
rob: *rub*rub*rub* "ZzZzZzZzZz"
jack: hey everyone look, alan is sleeperbating
everyone: jeez, he's getting more action than a 2 dollar whore.
jack: yep. he's a very talented sleeperbater.
by johnny mackenroe September 15, 2005
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