The act of having anal intercourse without prior cleansing of the colon, followed by immediate insertion without cleaning into the vagina of a woman
1. That rusty screw gave me a yeast infection.
2. My bitch was giving me lip last night so I rusty screwed her.
by Panzer23 April 8, 2011
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When a male defecates into a females vagina, then proceeds to make love to her with the faceas still inside of her.
Female 1: What happened to you last night?

Female 2:After giving Kris a rusty trombone he rusty screwed me. It was so messy!

Female 1: I love it when Nick does that to me.
by RustyWelshys April 23, 2012
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The act of having anal sex without emptying one's bowels beforehand with (most commonly) a man over the age of 75.
Damian : "Me and Winston had a cheeky rusty screw while his grand daughter was in the other room!"
James : "Wow, I can't wait to have my first rusty screw"
by LargerThanAverageDave May 7, 2023
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1. The act of intercourse while a woman is on her period.

2. Fuckin' while she's on her period.

This is an old Sailor's phrase. It comes from the rusty-red color of period blood. And the slang term "screw" commonly used to refer to intercourse. It should also be noted that human blood contains iron, and its red color is due to an oxidation (or rusting) reaction.
Me and my boo had a rusty screw on the kitchen floor. It got real rusty.
by drankinzailor January 6, 2019
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