Top definition
Grownup trying to act cool. Usually used in response to a grownup using chatspeak weirdly or out of context just to show how "with it" they are.
40-something: OMG it was so TMI, LOL.
Normal person: GTTAC
by Genrick October 02, 2009
Get the mug
Get a GTTAC mug for your bunkmate Jovana.