An insulting way to disrespect some minga who is horribly revolting looking. A very discusting person that should be living down in the sewers where they belong.

they are the biggest bitch ever and they have zero brain cells and i hope they get killed by a big fat idiot bc they deserve it, and i hate them and they can all go and fuck themselves. sewer rats usually have disgusting short and brown hair that looks like they haven't washed it in decades. the are also really tall and have a stupid opinion.

a sewer rat describes the most GRIMEY girl on the planet... she wears her polo's under her t-shirts and overuses phrases like "effing" "whore" and "GD"

an ugly person who has bigg ass teeth and has no freinds and everyone makes fun of them.

a t-rone or wack rapper that thinks he can who look like mr ed also with huge teeth trys to sing on his hit single in those jeans

A rat that lives in sewers, comes out at night and rapes and pillages the neighborhood

1: Rat that lives in a sewer.
2: One who enjoys anal sex, especially a male homosexual.

See: marmite miner, fudge packer, uphill gardener, etc.