Top Definition
An acronym for "Gay Asian Midget Grandma Ass Rape Porn", which is a proposed proof of Rule 34.
Guy 1: Dude! I just saw this gay Asian grandma, who is also a midget, raping another gay Asian grandma, who is also a midget in the ass!

Guy 2: Duuude, you just watched Gamgarp?! That's gnarly!
by improfia December 01, 2009

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