river rat 

In poker, the river is the fifth commmunity card to come up and the river rat is a person who called all wagers, with no apparent hand and a minute chance of winning, in order to catch some miracle card and 'river' any legitamate betting/raising hands.

I flopped a set, pounded it the whole way, and that river rat Mario called all the way just to hit a gut-shot.

river rat by haymaka May 2, 2004

Desert Rat 

Some one who was born or lives in the High Desert of southern California for a long time and has pride of the desert usually a punker a desert rat also usually roams the streets a lot smoke weed and drinks King Cobras

Hey man did you see Joe at the Spitting On Cops show last night?

Ya hes always at those shows what a desert rat

Desert Rat by rfgewcdqjcklfnbeqwdcvge2hbqwnx July 8, 2010

sewer rat 

A used tampon, all nasty with the string hanging out, flung in a toilet, potentially to clog the sewers.

She flushed her sewer rat despite the signs requesting not to do so.

sewer rat by Joolie D November 15, 2005

River Rat 

Another reference to a USN SWCC (Special Warfare Combatant-Craft Crewman. SWCC are our nation’s premier force for operating and maintaining high-performance, state-of-the art craft on NSW combat missions in littoral (shallow-water) environments. These elite fast-boat operators are part of Naval Special Warfare Command, which is comprised of SEAL Teams, SEAL Delivery Vehicle (SDV) Teams and Special Boat Teams.

Highly-experienced “Brown Water” boat operators in support of SEAL missions.

The River Rats will be the support transporting the SEALS for the combat mission.

River Rat by snflwrtato October 21, 2011

Clat-Rat 

Something or someone that is Dirty,Skanky, Scummy and/or Ratty.

'' Eurghh - That Girl over there is a right Clat-rat ''

Clat-Rat by gemembem September 13, 2009

coventry rat 

A group of homosexuals who hung out on in the fabled Coventry village in Cleveland Ohio. Origins of the word stem from "Hood Rat".

Bruce, a known Coventry Rat, likes his balls hairy.

coventry rat by anon-two1sicks April 15, 2008

Whack Rat

One who saves every dirty mag and porno they have ever bought, they usually have closets full of the stuff. They will never throw it out and will go back sometimes, and whack off to shit several years old because they can't help themselves. Support groups are beginning to pop up here and there but most are to busy whacking off the attend them.

I was over at Rick's house last night and his closet is full of porn, he's a damn whack rat. Must be a thousand mags in there.

Whack Rat by Moneyshotman February 8, 2010