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Catch-all word for an affliction or disease that isn't known but surmised.
"I don't want to go anywhere near that guy- I think he has crusty rusty's or something"
by The Maze June 25, 2008
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The process of a girl being on her period, not cleaning herself until the blood and discharge dries and crusts over, followed by a creampie and a vaginal feltching.
"Dude that party was sick! I heard that one guy was soo trashed, he gave a girl a Crusty-Rusty and didnt even know it!!"
by Jared M., Steven S. November 16, 2010
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