A combonation of the words "mega" and "retard". Often used as an insult whenever someone says something very obvious or very stupid.
"My friend just asked me what the difference is between third degree murder and third degree burns."

I don’t know why you hang out with that megatard.”
by Juni Wolfen July 10, 2005
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A combonation of the words "mega" and "retard". Often used as an insult whenever someone says something very obvious or very stupid.

Can also refer to the combined forces or impact of two or more annoying acquaintences.
"My friend just asked me what the difference is between third degree murder and third degree burns."

“I don’t know why you hang out with that megatard

or:

"Oh no - Chris and Big Andy are both coming to the party tonight. Don't let them in the same room, or they'll form into MegaTard and we'll never get rid of them!"
by Jimbob Dawgknob February 3, 2006
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A combination of 'mega' and 'retarded' to explain a really a bad situation that either makes you mad, or otherwise causes feelings of negativity.
Dood, your grandma died..that must be megatarded =-/.
by Kingsley Dawson April 24, 2007
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The fusion of 'mega' and 'retard'.
Noun used to signify someone thats really retarded.
Girl1: Hey, did you hear about the latest swine flu outbreaks?

Girl2: HAHAHAHA OMG you idiot, it's bird flu, not swine flu!

Girl1: Damn you're a megatard.

Girl2: I thought swines were birds?
by Lofty-J June 3, 2009
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Shin Megami Tensei-tard. Used for retarded fans of Shin Megami Tensei series.
by lololololthisisme January 1, 2011
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A way to say a person is beyond the levels of retard. Usually used on people that have bellow -0 IQ
Person 1: Person 3 is such a MegaTard.
Person 2: I know. Person 3 says ye all day not knowing other words and incapable of basic math.
Person 3: Ye.
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