What is Masterflashing?
1.
the act of exposing oneself to another person while mastubating in order to achieve erotic pleasure. A combination of the terms "masturbating" and "flashing". Note that this term has no relation to the rapper Grandmaster Flash.
Dude, that guy over there in the long raincoat was totally masterflashing us.
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While already seated in the First Class seats with a drink in hand, this describes the procession of the coach class customers who must ..
