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When you masturbate for the sole purpose of getting to sleep. "Snappy" referring to snap one off and "Snoopy" referring to being so tired you could fall asleep on the top of a dog house.
Dude, after tossing and turning for 3 hours I had to do a little Snappy, Snoopy just so I could get up for work.
by Big Francisco September 25, 2008