ugly sister competition 

Being offered the choice between bad and worse.

"The salvation of the pound is that its problem is not a pound-specific problem," he said. "It's an ugly sister competition and at the moment we're looking the ugliest. But if you sell the pound, what will you buy?" (The New York Times, Jan. 21st, 2009)

ugly sister competition by Roka_73 January 21, 2009

Sled Sister 

The female equivalent of eskimo brothers: Two girls that have bumped uglies with the same guy.

Sled Twins have 2 or more sex partners in common.

You are fucking Tanner? no way, i fucked him too! we are sled sisters!!!

And you fucked his brother?? wow. me too. fuck we are sled twins.

Sled Sister by eskimobrothermaker September 25, 2011

Ur sister mister 

The worst possible insult ever in the entire world apart from your granny tranny

"Your Granny Tranny lol!"
"Ha! Your sister mister"
*implodes*

Ur sister mister by Damoxd March 22, 2018

rawley's sister

The sister of a cocksucker, she wants the cock of some of rawleys friends. She is a massive whore with a bad attitude. And she has the upper body strength of john cena.

Yo that chicks rawley's sister...

Yo man I don't fux with that

rawley's sister by Yamboi November 14, 2013

Swee's sister 

-thick or thin always hot
-hot girl from yardley suburb

Damn Swee's sister is hot

Swee's sister by mark o'rear April 8, 2003

All the world and his sister!

A figure of speech (commonly used in Israel), meaning that too much people (to many) are involved with the issue.

Q: Have you participated in the party last Saturday?

A: All the world and his sister been there!

All the world and his sister! by Yaron Dror May 13, 2005

Kentucky Sister Loan 

To loan one's sister to a friend for sexual purposes.

It was going to be a slow weekend until Bob gave Tom a Kentucky Sister Loan.

Kentucky Sister Loan by DizzleFoRizzle February 17, 2009