Frat-Rat 

A trashy member of a college fraternity who has no boundaries nor regard for people, property, morals, or rules

Get out of my dorm you filthy Frat-Rat!!

Frat-Rat by OldDogg March 1, 2019

frat rat 

A girl that spends exorbiant amounts of time at a frat house, usually with the intent to slut it up with one or more of the fraternity brothers.

A girl that fucks a different frat guy every week.

1. Michelle S. at Illinois State University

2. Frat guy 1: "Man that chick is over here doing a different brother every week!"
Frat guy 2: "Yeah dude. She's a frat rat."

frat rat by Dave December 13, 2004

frat rat 

A licentious girl who tends to spend copious amounts of time at a fraternity looking for ”frat guys” to pound her in ways that are illegal in most conservative states.

1. Kristen M. at Purdue University

2. Frat Meathead 1: Yo Brah, that Sarah has been shaking around here brah.
Frat Meathead 2: Yeah man, that girls a frat rat … brah.

frat rat by flouster April 23, 2009

Frat rat 

A female who goes after frat boys like a rat looking for food.

Frat guy: woah that chick sav. Loves all the frats! She's a total frat rat dude!

Frat rat by Chicknfingrz May 14, 2016

Frat Rat 

Some one who is known for sleeping with many guys in the same fraternity.

"Hey Frat Rat, can i be next?"
"what the hell are you talking about?"
"I've heard you've slept with every guy in this Frat."

Frat Rat by Annie-mouse November 10, 2012

frat rat 

a girl that whores herself at a frat any day of the week...for free.

a frat rat is a slut, paris hilton, briana hilton who will suck off pretty much anyone

frat rat by Charli Fayeson and Jim Thomson March 2, 2009

frat rat 

a girl who spends so much time at a particular frat that she is practically a member. a girl of bro status who has been accepted by the brothers of a fraternity as one of their own.

don't mind her, she's just here broing out, being her standard frat rat self.

frat rat by #miamifratrat April 15, 2011