look up any word, like ratchet:
 
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
 
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
 
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