GM

Glamour muscles. Muscles that you work out that are only for looks - not for core strength.
From the show "it's always Sunny in Philadelphia" this is what Dennis called Mac's muscles - GM - Glamour Muscles - god dammit!

Dennis: Well, how the hell are you planning on getting in there, Mac?

Mac: Uh... you put me on the spot. First thing that comes to my head, scaling the façade. All right, I know I soured on that earlier, but I believe that is my mind telling me that I have it in me.

Dennis: Okay, I hate to tell you this, bro, but you do not have the core strength to scale the façade of Citizens Bank. You just don't.

Mac: What? I work out all the time!

Dennis: Yeah, but you only work out your glamour muscles, and you know it.

Mac: I work out my core.

Dennis: No, you do not work your core. You're totally arm-heavy. You're all bis and tris and everything else is just fat and-and ribs.

Mac: Bro, I can do way more push-ups than you, and that's like 16 different muscle groups, I think.

Dennis: That is beyond retarded, what you’re saying right now. edit
by Panther Pride August 31, 2010
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GM

sarah is such a GM!
by rawrhahahalol February 28, 2010
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GM

General Motors, one of the biggest companies in the automotive industry, owns many brands marketed in both US and overseas, including Chevy, Cadillac, Pontiac, Holden, Opel, Vauxhall, etc. A lot of Americans say that the GM cars there suck, but the main GM brand here in Australia, Holden is actually very good, their cars are fast, reliable, safe and comfortable.
This morning i went for a drive in my Holden Commodore, manufactured by GM in Australia
by Someone Else April 30, 2005
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gm

gm means good morning to internet slang, but some older people could use it differently.
by GrxngeBoi October 17, 2018
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GM

1. A motor company called "general motors"
2. The General Manager of a company.
1. Did you see GM's new van? My mom wants one.
2. The GM doesn't like your work, if you don't get crackin' he's gonna' fire you!
by WaningMoon March 22, 2006
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GM
by Hajs5 June 03, 2009
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gm

Sh!t box on wheels. Inefficient gas-guzzling poser mobiles. You can spot these bastards of the auto industry at the bottom of any rating in a consumer report type magazine or mechanics shop. Owners usually own more than one so while some of them are in the shop they still have one on hand if they need to go places. GM produced some of the largest cars on the road, including the notorious H2. Now that gas is ~$4.00 they are struggling to sell their Hummer brand and were forced to lay off many workers and close 4 plants recently. They are also bidding on a lame attempt to put forth a hybrid model that's supposed to get 40 mpg and is supposed to charge from a wall outlet. Toyota already announced that they will produce a car that will rival this one (not the Prius). Needless to say GM will surely fail miserably and Toyota will reign as the supreme auto maker in the U.S. and the world.
1)GM doesn't care if it goes bankrupt because the government will bail them out.

2)This one guy has an Escalade. It's a car made by GM. It's a sport utility vehicle, though I wouldn't recommend going off-roading with it as it isn't very sporty. If you do you will surely destroy the car.

3)It only takes $100 plus dollars to fill up my GM vehicle.

4)The 1999-2000 year model Escalade was nothing more than a Yukon Denali with a cadillac badge. Both of these primitive machines were made by GM. The only difference is that the Escalade costed more than the Yukon when it came out.

5)Due to poor managment GM had to lay off a ton of its workers. None of the CEOs (that are largely responsible for the rut that Gm's in) were fired though.

6)GM was surpassed by Toyota a couple years ago in the amount of cars manufactured.

7)I wouldn't load up on GM stocks just yet...or ever.
by BobLutzSucks August 20, 2008
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