by BCIsProbTired September 5, 2021
 Get the Deep ratmug.
Get the Deep ratmug. 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.
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."
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."
by Dave December 13, 2004
 Get the frat ratmug.
Get the frat ratmug. A mall rat is a creature that is overpopulating the malls across the nation, mostly on Saturday afternoons. These creatures are most known to be horny teenagers and early twenty-agers who can easily be spotted wearing slutty clothes that either has printed on them: Abercrombie, Hollister, American Eagle, or in fewer cases if it's a less fortunate mall rat, Aeropostale. These creatures think they are "cool" and will find someone to mate with by wearing such slutty clothes, but in reality, they are just wasting their life away walking around the damn mall all day long with nothing better to do. Also the younger mall rats (the vast majority of them) have their gullible parents walk into one of the clothing stores mentioned above with them so they can make them pay an arm and a leg for the overprice sluttly clothes sold there.
Mall rat 1: "Hey! what do you want to do this weekend?"
Mall rat 2: "I don't know. HEY! lets go to the mall!"
Mall rat 1: "Ok. Sounds fun! Maybe I can talk my mom into buying me those tight pre-ripped jeans from Abercrombie for $95, and then after that, we can walk around the mall all day there because we're cool!"
Mall rat 2: "OMG! that sounds like the perfect way to spend a Saturday!"
Mall rat 2: "I don't know. HEY! lets go to the mall!"
Mall rat 1: "Ok. Sounds fun! Maybe I can talk my mom into buying me those tight pre-ripped jeans from Abercrombie for $95, and then after that, we can walk around the mall all day there because we're cool!"
Mall rat 2: "OMG! that sounds like the perfect way to spend a Saturday!"
by zeb123 March 11, 2009
 Get the Mall ratmug.
Get the Mall ratmug. by rekco January 25, 2011
 Get the rat shitmug.
Get the rat shitmug. by Linus12 June 20, 2010
 Get the rat-fuckmug.
Get the rat-fuckmug. Someone that uses or creates surreal/cursed memes to an extent that it becomes part of thier character as a whole.
Person 1: that guy over there likes those weird internet jokes way to much
Person 2: Ikr, he's such a rat slapper
Person 2: Ikr, he's such a rat slapper
by M&M the raper October 10, 2020
 Get the Rat slappermug.
Get the Rat slappermug. The class ring of the Massachusetts Institute of Technology (MIT) in Cambridge, MA, USA. Of gold alloy, it bears a relief representation of the school's mascot, the beaver, chosen because it is an engineering animal.
I saw more than one brass rat at the Stanford Hillel. Evidently a lot of Jewish MIT graduates end up doing work at Stanford.
by Leslie Doppler May 23, 2010
 Get the brass ratmug.
Get the brass ratmug.