Vermilion is a Native American word for red clay used to make paints. The town bearing this name in Ohio is historicaly nautical.

A Vermilion Boat Cover is a used condom showing signs of a chick on the rag.
Matt: Did you see that nasty vermilion boat cover in the corner of the bathroom?
Grant: That's what that was?! I thought it was a gusher...so I ate it! Didn't taste bad, though.
by Gabe Oytoucher December 15, 2014
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