1 definition by derpindicktionary

Top Definition
G.M.S. is an acronym meaning Gargle My Sack
Used often in the VisEffex community of Savannah GA.
It is generally used retort for any unnecessary comment and or action.
"Wow! My grandma can model faster then you."
"Really? Cuz your grandma can G.M.S."
by derpindicktionary November 08, 2011

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