Rat Out 

To tell on someone

1. I heard she rat out on Rosa.
2. That chick is so dead.

Rat Out by Mamapeach July 20, 2014

rat out 

Ladies parts of pleasure(booty)

Would you like a drink ?
If so get your "rat out"

rat out by AARFC April 18, 2005

rat out 

Old Athletic from 1919
meaning ladies nether regions..

Would you like a drink...
if so get your RAT OUT !!

rat out by AARFC April 18, 2005

Get Your Rat Out 

A phrase that is believed to have first been used in the town of Blackwood, South Wales by boy racers cruising up and down the high street to get the attention of good looking female members of the population.
"Get Your Rat Out" literally means expose your Vagina or Vulva. In the late 1990's it became apparent that "Excuse me Madame, but would you mind showing me your vaginal opening, only I'm rather fond of you and all that" was no longer acceptable, hence a much shorter phrase was required. Recently, since 2004 "Get Your Rat Out" has been shortened to just "Rat Out". Academics have theorised that within the next 5 years this will be shortened to just "Rat", as motor vehicles become faster thus making it more difficult for one to shout “Rat Out” whilst passing some rather delicious ladies.

"Oi Love! Get Your Rat Out!"

Get Your Rat Out by FoxThree June 14, 2006

get ur rat out 

get ur fanny out

oi get ur rat out

get ur rat out by Anonymous September 29, 2003

get ya rat out 

a phrase used largly in southern england.

The common beleif is that the phrase originated in Tadley, hampshire but has been heared as far as leeds.
used to get the attention of a young lady.
lit: pardon me young lady, please show me your undercarage

look at that bird..... oi girl....... get ya rat out

get ya rat out by disaster138 August 12, 2009

get your rat out 

to reveal ones pussy/cunt/punani/lady cake..... when a female exposes her kebab.....vagina

alright darling, get your rat out!!!

get your rat out by Ryk Turner February 1, 2005