Top Definition
To masturbate while having a flaccid penis.
Devon: That was a great flasturbation session.
Gary: How do you even manage to flasturbate?
by Flasty December 22, 2014
A verb, meaning to masturbate at speeds exceeding 55 mph. If you ever masturbated in a moving car or on an airplane that was not Flasturbating. It was masturbating in a car or an airplane. Flasturbation has to do with the speed of you hand.
The flash doesn't masturbate, he flasturbates.
by Seuse November 29, 2003
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