Abbreviation for severe Headaches, usually associated with stress. Migrane.
I have such an MG I can not go to work today!
by Rookie January 27, 2004
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Someone who thinks they are the greatest person alive, but fail miserably at achieving such. The initials 'MG' stand for mundane gorilla. Someone who is referred to as MG has little to no intelligence, and often lacks even the most basic of skills.
Alex Doyal, a famous noob roleplayer would be a prime example of an MG. He constantly thinks he is the greatest, simply because he can speed fight.
by Raghnall Issachar January 14, 2007
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Hmph, I'm mad at you, heard MGSs were all over you last night.
by P-bear88 August 14, 2011
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MGs(Mahatma Gandhis) are Indian rupee bills

the reason people call them MGs is because the face on the bill is of Mahatma Gandhi who was
preeminent leader of the Indian independence movement in British-ruled India.
We gots to get those MGs
by GhusFring September 5, 2016
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Tom: When Bob comes we can find out how many guys Jenny has done.
Rob: MGS!!!
by WTFJIM? May 14, 2011
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meaning: mad gay.

basically,when something is really gay,not in the obvious form but rather like saying "lame"
Mike:"Dude i just totally beat the shit outta your little sister !"

Cisco:"that's mg..."
by Mikeisftw July 11, 2008
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