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3.
GMC
Government
Motors
Company
Person 1: Hey man do you prefer GMC or Ford?
Person 2: Well GMC was nicer until Obama hyjacked it...
by echo2654 September 09, 2009
 
1.
gmc
GMC aka General Motors Corporation.
For the fans: GMC
Gods
Master
Creation
by syklone September 03, 2007
 
2.
GMC
1.
General
Motors
Corporation

2.
Give
Me
Cash
I drive a GMC SONOMA.
by Carman Ghia March 05, 2009
 
4.
GMC
Garage Man's Companion

Gotta Mechanic Coming
Dude 1: "Whoa, what's with the junker GMC?" Dude 2: "It's my skanky ex wife's stupid useless vehicle. All she ever does is yap about her garage man's companion." Dude 1: "That sucks, man. I thought GMC meant Gotta Mechanic Coming."Dude 2: "That's what my slutbag ex wife said in our bedroom fucking that pindick mechanic!"
by sliptrip December 14, 2011
 
5.
GMC
Gargle My Cum

Can be used like smd
bitchy chick: hey asshole.
chill dude: gmc bitch!!!
by urbandictmehhh May 31, 2011
 
6.
GMC
Giant Mechanical Cock
She beats her husband with her GMC, which is prolly nuclear-powered and has mad top stops and swagelock fittings
by JJ86 February 01, 2008
 
7.
GMC
Getting Money Constantly
Lucy; Im GMC Nigguhhh!
Mike: Wahh?
Lucy; Getting Money Constantly...duhh?
by Rxtchet_Bxtch May 28, 2014