Is a dirty dildo with shit on it or a dildo that is only used only for anal purposes.
"Hey can I borrow one of your dildos?"

"Sure. But don't grab that one. It's my rusty dildo."
by Robyn Souls December 15, 2020
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A great underground rock band with 17 listeners per month
Person 1: what are you listening to?
Person 2: rusty dildos! Wanna hear the song?
Song: *GRUNTS*
by I’m a human May 24, 2022
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A weathered dildo that has been worn out with multiple nasty pussies but still useful for taunting your adversaries. No classy woman would use a rusty dildo as it has been overused.
Go suck a rusty dildo.
by Meme King Shit Spreader October 25, 2019
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