1 definition by Martyn with a 'y ' bitches

Top Definition
The act of ingesting an entire bottle of sleeping pills and then attempting to whack off before falling asleep.
Martyn: You guys ever tried sleep wanking?
Zach: Yeah! It's great cause you always win
Steven: Unfortunately you can never stay awake long enough to clean up the mess...
Lads: Aye!
by Martyn with a 'y ' bitches July 26, 2008
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