When a right handed man places his left hand under his own ass, sitting on the hand until completely numb, then uses said hand for masturbatory purposes.
Synonymous with a left handed stranger, yet a beast all its own.
Since I haven't been laid in a while, I figured, fuck it I'll give myself a dead lefty.

I gave myself a dead lefty last night.
by Miles Boomonte April 20, 2010
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