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2.
A abbreviation originating in the Midwestern United States, meaning "All Me All the Time".
its not you girl. In fact, its AMATT.
by ohio io io January 20, 2012
 
1.
Describing a bad/clueless player that thinks they're doing good, even though they are completely useless.
"WOW you are such a matt"
by DisDaSing December 20, 2011
 
3.
To dress up for no apparent reason in the hope of being the centre of attention.
"Why are you wearing a suit? Are you going out?"
"No"
"Pulling a Matt?"
"Yes"
by Tomily April 14, 2010