frat-mat 

Girl who will sleep with any guy wearing greek letters. She has had so much frat boy on top of her she becomes a mattress...literally. Short for frat-mattress

Oh shit Scott, that biatch in that corner is a hardcore frat-mat. I bet doin the grown-up with her is like fucking an old catchers mitt.

frat-mat by Donnie Vomit January 3, 2006

frat mat

A girl who gets laid on by so many frat boys that she becomes one of their mattresses. Short for frat mattress.

Guy 1: I hear that girl's a total frat mat.
Guy 2: Maybe I should go take a swing at her...
Guy 1: Not unless you want hepatitis!

frat mat by UMW_Paul March 23, 2008

Frat Mattress 

Someone who gets around, and often sleeps with members of a fraternity.

Person #1: Let's do some word association. Frat Mattress.
Person #2: Whitney
Person #1: Why?
Person #2: Because it just seems to fit.

or

Whitney is such a frat mattress.

Frat Mattress by rusty bellige March 31, 2009

frat mattress 

1. Adjective. Loose person.
2. Female who sleeps with lots of men, usually members of a fraternity.

Laura is a big frat mattress.

frat mattress by Matt December 7, 2004

frat matress 

A college girl, or townie who spends most of her time under 1 or more frat boys.

My roomate is such a frat matress, if i put her under a blacklight the girl would glow.

frat matress by Lylli December 14, 2006

Frat Matter 

A bizarre, grey substance found on shoes and the bottoms of pants after a frat party. It is sticky and repulsive, as well as exceedingly difficult to clean. Everyone always has their own definitive theory of what it actually is and how it gets on everyone.

Bruh, it took my mom like 3 hours to get all the frat matter off of my shoes today.

Frat Matter by BIGAL51 March 16, 2016

Frat Material

Any type of fabric silk, cashmere, etc that automatically attracts a hoard of bitches.

After wearing a tommy bahama shirt made out of some fresh frat material, John was surrounded by more bitches than he could count.

Frat Material by PMPmstr April 20, 2015