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masturbating in your sleep
Jimmy fell asleep with his dick in his hand and woke up with semen all over him and exclaimed, "Shit, I was slasturbating again!"
by shittydrumsalot October 26, 2009
staying inside all day to just sleep and masturbate
John: dude yesterday i was slasturbating like crazy

George: o yeah well i slasturbate like every other day
by JabroniMaster February 01, 2011