1 definition by amxlia
Go Fuck Your Mum. Simple. Basically if someone is really pissed off and some dick comes and ruins their day, just a phrase to tell them to go do one.
James: "Amy you look like a mong in that selfie you just uploaded on instagram. Ha gayyyyy."
Amy:"GFYM James."
James:"....."
Amy:"GFYM James."
James:"....."
by amxlia July 02, 2014
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