Abbreviation that originated in Luton used to shorten the expression: 'Gay Man Ting'. This can confuse teachers when going through Geometric Sequences (which is definitely a GMT)
You going Brighton with her yea!? That's a GMT mate!
by AnonymousGMT November 30, 2011
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Greek Mishimou Time

atleast 2hrs after the suggest time for greeks to meet
(aka greek maybe time for all non greeks)
Stelios: Re Koumbare, i told you to come for dinner at 6
Nikos: Then im early, its only 7:30
Stelios mutters to himself: balio GMT
by GinaBambina April 20, 2006
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Good Morning Toke, same thing as a wake 'n bake.
"Oooh, good morning, time for my GMT"
by Bam Carter August 7, 2007
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"OMG 32GIG USB FLASH DRIVE! GMTS!"
"iPhone 3G, GMTS.... NOT!"
"BOOZE, GMTS!"
by lawrencealan July 22, 2008
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OMG I CANT BELIEVE YOU SAID THAT! Gmt.
by CloudedAshes June 15, 2016
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GMT is act of doing something good and promoting God's kindness by doing so
by GodManTing September 29, 2018
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Acronym for "Google Mo Tanga"
"Ano ung empanada?"

"GMT"
by strwbelly May 15, 2022
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