A female of the ugly and/or obese variety.

See also Good Machine.
Woah guys don't look over there... total rusty machine.
by Caz_B February 4, 2008
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When you have anal sex with a old woman and her asshole is tight like a teenager's twat
The bitch had a wizard's sleeve so I took a ride in her rusty time machine.
by rusty time machine July 10, 2009
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A sex move used within anal sex, in which the person give the anal sex spins his penis around inside the receiver of the anal. And then pulls out to find his penis has fecal matter on it.
Dude, I used the Rusty Washing Machine on this chick last night and it was gross!
by Maury Povich Numbah Two March 7, 2010
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When a guy finger fucks a girl 8 times as if he was inserting quarters in her, then he pushes on her nipples while he reaches around and sticks his fist in her ass as if he was getting his snack.
Lets go over to Audrey's house. I heard from many guys that she likes the Rusty Vending Machine.
by kljsadflasjdfkldsf September 27, 2010
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The opposite of a rusty trombone. Internationally hand signalled by pointing your index finger toward a fictional v-hole while feigning to lick an imaginary fecally stained sphincter.
The other night when my girl came over, instead of getting a rusty trombone I thought I'd do something nice for her. I told her to use the Kamode but not to wipe. Tonight was going to be her special night. The night of the rusty sewing machine.
by dis sho am good June 21, 2006
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