A Sewer Rat 

.A way to refer to a closeted femboy. A man that wants to dress in a feminine manner, yet is scared to admit so

.Person A: My friend jerry is a sewer rat
.Person B: I wish him the best of luck with coming out to his loved ones

A Sewer Rat by wemz May 23, 2021

Dirty rat from a dirty sewer 

A person whom turns on you and screws you over for a girl, video games, or money. Any malicious act against you or your friends can qualify the perpetrator to be called a dirty rat from a dirty sewer.

Also can be called a 'filthy rat' or 'the filthiest rat' or 'the dirtiest rat from the dirtiest sewer' or just plain 'rat'

Guy 1- "That Chris is a dirty rat from a dirty sewer."
Guy 2- "Yeah, the filthiest rat from the dirtiest sewer."
Guy 3- "What a dirty rat!"

Dirty rat from a dirty sewer by Rat Keeper March 23, 2011