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1 definition by Brendan Greenburg

 
1.
Usually a "code word" for meth and the use of the drug meth. Began as a signal to buy the drug, but later transformed into a common use for meth in general. (can also be used for use of cocaine in rare cases) Originated in highschool settings.

stands for:
G.et the
M.eth
T.onight
A.llright?
"Julio, can you G.M.T.A tonight?"
--"Yep, Pablo, We'll be doing drugs all night!"
by Brendan Greenburg August 25, 2005