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gtgsmc stands for "Got To Get Some More Coffee"
and could be used insted of like brb but you're being more specific about what you're going to do

Dude 1: so what ur up to?
Dude 2: i got this big essay ill have 2 write
Dude 1: pulling an allnighter?
Dude 2: yupp, gtgsmc
by timdenvilde February 02, 2010
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