Something extremely adverse (see: negative).
The torrential rains had a megative effect on my golf game.

I hope my addition to the Urban Dictionary does not megatively affect Roy Blount's on-going efforts to be honored in a similar fashion.
by Tad McDonald February 2, 2009
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Another form of saying "Fucking" or "Messing around"
Alex: "I'm gay"
Michael: "Alex, what are you saying?"
Alwx: "I don't know I'm just megging with you."
by mf486264 March 23, 2009
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Acronym for Most Embarrassing Guy/Girl.

Obnoxious, embarrassing, loud, annoying, over the top. Goon-like, a fool. Can be used to describe male and female.
Hey dude, did you see PJ last night? He was being a meg.

Stop drinking soo much because you turn into a meg when you're drunk.

Last night PJ was megging out.
by WillBriz April 20, 2006
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When something is extremly negative.
It was megative 25 yesterday.
by Nobody86718 January 25, 2011
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To look off into the distance with a mixed and confusing look on your face. Wrinkle your brow, gape open your mouth and shake your head as you look longingly into the distance...

The look of confusion or dismay.

A mixed emotion facial expression.
I told her to hurry up and get it done but after I explained the process she just stood there megging. I had no idea what to say.
by dreadthedays June 10, 2013
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