When you take a crap on a pillow and smear a person's face around in it. Then you force the person to let it harden on their face.
Dude, I don't think i can sleep in a bed anymore, that crusty potato ruined it for me.
by sshhaawwttaayyy January 06, 2010
When you stick you crusty toe into the homo-sapiens mouth while they are asleep.
My cousin Zac gave my other cousin Steven a Crusty Potato.
by nunya February 25, 2005