Abbreviation for German Domestic Motors. Alike to JDM (Japanese Domestic Motors) and USDM (United States Domestic Motors). GDM implies a higher class of car manufacture and car parts. It is also a tuning style wherein Japanese cheap parts and modifications are avoided and higher quality parts and clean and subtle modifications are used. A GDM BMW can have BMW Style 32 wheels, not Koya Driftecs.
JDM owner "Hey check time attack front lip and my Advanti rims in a fluro colour!"

USDM owner "Wooo horsepower! I am driving on the wrong side of the road!"

GDM owner "Factory tuned. You're doing it right."
by GDM Bimmer May 3, 2011
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Abbreviation for German Domestic Motors. Alike to JDM (Japanese Domestic Motors) and USDM (United States Domestic Motors). GDM implies a higher class of car manufacture and car parts. It is also a tuning style wherein Japanese cheap parts and modifications are avoided and higher quality parts and clean and subtle modifications are used. A GDM BMW can have BMW Style 32 wheels, not Koya Driftecs.
JDM owner "Hey check time attack front lip and my Advanti rims in a fluro colour!"

USDM owner "Wooo horsepower! I am driving on the wrong side of the road!"

GDM owner "Factory tuned. You're doing it right."
by GDM Bimmer May 3, 2011
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Local off-topic forum created by Hakim aka The Camel Rider, he's known for his awesome dorifto skills behind the wheel of his Cressida, he is also the founder of GDM inc. The corporate spokesman and mascot is the charming and always friendly Pedo Bear.
Poster #1 - MR's off-topic sucks now WTF?????
Poster #2 - Yeah I know, I wonder what happened?
The Camel Rider - Join GDM, that's where all the cool people are.
DIY Motivator King - We have cookies and naked pics of Miley Cyrus .......
TEXAS2sLOw - Thread locked.
by Thobias Funke April 23, 2008
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A BattleField Clan that plays BF:Vietnam,BF:1942 and Desert Combat Mod. Also knowen as GDM and God Damn Minivan.
GDM is the best BF clan around
by [GDM] July 31, 2004
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get drunk monday

(1) A global social event where everyone gets drunk and posts selfies using "#gdm". It's a thing now!!

(2) An excuse to get wasted on Mondays.
Hey dude! It's Monday... Let's have a #gdm!!
by daschlaffi August 18, 2014
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P1: Did you hear what he said about her!?
P2: Yea that couldn't have been me I would have went clear off on dude gdm!
by Just saying... January 30, 2017
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GOD DAMNIT MILLZ

an expression to be used when one performs an extraordinarily tarded action, or says something completely asinine.
shut the fuck up, GDM

GDM, get away from me

sign off the internet. GDM.
by - - - February 11, 2005
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