Sick Rat

Most commonly used in Australia. Can be used as an insult to anybody, but generally laid off at your friends or acquaintances in a jokingly manner.

Can also have the potential for appraisals, such as another Australian colloquialism fully sick('fully sick, mate' after can be used as well).

"Your such a sick rat."
OR
"Your such a sick rheeet" (emphasize on the rat to show even more disgust)

by Jonathan.M November 8, 2007

Trench rat

A very hairy and cheesy vagina, with a deep camel toe, resembling a large trench rat from world war 1

I was about to have a good time with Judy last night but then saw her trench rat and puked in my mouth.

by Lilboyblue January 13, 2015

School Rat

A teacher's kid. A child who spends more time than most at school; often because of their parents chosen profession.

The life of a school rat teacher's kid is never easy.

by Andrewsaints August 9, 2016

Rat Child

an annoying person who is most likely younger than you

"go away, you rat child"

by Im a gay bitch October 12, 2018

Fort Rat

A player in Fortnite, that only hides and makes noise under neath your base. These players are often annoying to deal with or just overall toxic.

“I think a hear a fort rat scurrying under my base.”

by Moonie21 July 3, 2018

last rat

Being at your wit’s end.

Shut up Logan, I’m on my last rat.

by OGsavage123 May 23, 2018

Snake Rat

A snake rat is someone that calls the police and tells lies.

The snake rat convinced the police that the man committed crimes that he didn't commit. The man did 1 month in jail. He didn't even counter with charges of mischief. He figured he'd give the loon a break.

by dddkdmckdldlld May 27, 2018