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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1.
When a group of people are smoking weed and one person gets the bowl. This person simply holds it and chit chats for five minutes inste..