Person 1: ain't that a nice looking GMC
Person 2: soz I'm not gay

Person 1: why do u say that
Person 2: did u heard what GMC means, it means gay man's car
by Dr.Snake53 January 6, 2018
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Gun Motor Carriage
A type of military vehicle used mostly in WW2, that's lightly armored
and has a gun, that's useful as a support utility.
A self propelled artillery/AA gun/howitzer

Also used as other abbreviations, for example:
Genetically Modified Cabbage
Keep the GMCs behind the tanks!
The AAGMC in the convoy is there to provide mobile AA fire.
We need to dig in those GMCs before the counter attack or
they won't last long!
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General Motors truck line structurally identical to Chevrolet trucks

real meaning: General Motors Company
owners meaning: Greatly Made Chevy
Pontiac for cheap cars
GMC for good trucks
Chevrolet for both
by Geek-O-Man March 6, 2005
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means got me crackin. similar to lol
that guy just got hit by a car gmc
by gmoney78944 March 27, 2020
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Grandpa Motor Company. This truck is the truck you most often see in 2 wheel drive. The new Duramaxes are made for old men who like to drive their trucks once a month and never take them offroad. New GMCs dont have a solid front axle making them damn near offroad incapable.
Duramax is a great engine. Isuzu did a good job there. Fuck duramaxes i'll smoke any duramax in my ford 6.0 powerstroke.
by Bart Hansen April 7, 2004
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