rusty bike chain

Eating out the ass of someone with braces than making them suck your dick and smile, showing shit stains on their teeth and braces

Guy: Suck my dirty dick!
Guy 2 sucks and smiles.
Guy: Dude, you got a rusty bike chain!

by paulada5 October 20, 2008

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greasing the bike chain

Having a person who has braces blowing you than asking them to smile wide and busting the nut all over their braces.

Guy: "Smile wide, Brittany!"
Girl: "Why?"
Guy: "Cause I am going to be greasing the bike chain!"
Girl smiles.
SPLAT!!!

by paulada5 October 20, 2008

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When a Girl has a STD such as syphilis or any other nasty STD. Also when a man catches a STD from a girl.

Stay away from that girl, she got that dirty bike chain.

That girl gave me a dirty bike chain.

by Jay Riv May 17, 2023

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"Yo, it smells when Paul talks"
"Yeah. He got some bike chains"

by greeky81 December 5, 2017

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