Muff Rat

Greasy and dirty pubic hair typically a womans, but can also be mans.

"I told me boss his face looked like a muff rat."

Rat Talk

noun – Casual, meaningless chatter, often full of nonsensical ideas or pointless rambling. Like rats squeaking back and forth with no purpose, rat talk fills the air without adding value or making sense. It’s senseless talk just for the sake of talking.

Craig and Francis were caught up in a whole lot of rat talk, just passing time with nonsense.

mole rat dude

Usually a male with a very high iq, but is restricted from using his intelligence by his severe autism and speech impediment. Paces around a lot and always looks uneasy or awkward.

"Wow mole rat dude is really doing my fucking head in today."

Meme rat

Someone who repeatedly uses old memes, and likes dubstep and mlg, a meme rat's main source of memes is looking up "meme" in the chrome task bar and clicking on images. meme rats usually have small penises.

meme rat: dank 360 no-scope thrickshot Doritos
normal human being: shut up meme rat

rat beef

To start or be involved in a fight for a nonsensical reason with another person.

First guy; Hey dude watch out where you going!
Second guy: Fuck you!
Third and fourth guy: Looks they have a rat beef.

Ghost Rat

A sexual position popularized by youtuber Lyle Wrath involving using your finger to dart in and out of your lovers orifices

I did a ghost rat on tanya last night. She said "thats hot babe"

rat tunnel

when a super sweaty minecraft bridge duels player creates a horrid tunnel system under the bridge to win

God dammit, this sweat has made a massive rat tunnel and I am getting shit on...