Mattsine

A perfect couple you get when you mix the names Matthew and Ernestine.

Matthew + Ernestine = Mattsine

by ayeegirrl April 22, 2013

mattsie

Professional correspondence that contains what appears to be a poorly written text message.

An example of a "mattsie" would be a formal letter that includes the following: "She is a he haha he gets it all the time....he will be on time."

I made a mattsie in my last report and the report review staff rejected it.

by Coyote Bank Commander December 9, 2014