rusty kitten 

This has two means to it actually...

1. When your kitten plays in a pit full of rusty metal scrap pieces.

2. The act of rubbing a rusty pipe around on your vagina.

1. Dude you clean kitten is going to turn into a rusty kitten.

2. Honey? Why did you give yourself a rusty kitten??

rusty kitten by Taco Sanchez August 3, 2006

Rusty Kitten 

The butt, or more specifically, anus

-So how's your new girlfriend
-She's ok, but she won't take it in the rusty kitten

Rusty Kitten by Salty Skillz July 29, 2008