Literally Giggling My Tail Off. A more appropriate term when around strict parent who will beat dat ass if yu cuss.
OMG Beyonce's $3000 weave caught on fire GMTO!!
by CooL_Katt May 04, 2009
Like LMAO or LOL. It means GIGGLE MY TWAT OFF. a lot cooler.

Made by Susan and Destinee.
person1: d00d why did teh chick cross teh rode?
person2:idk why?
person1:to get to teh other side, duh!111!!!zzz
person2:GMTO!!!!!!
by des is so teh March 30, 2006
Get my talk on.
I am ready to GMTO.
by lovetomakeshitup August 10, 2010

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