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a word i made up today when i was trying to say gross and nasty at the same time. it means something is both equally gross and nasty
Alexa : That girl is so grasty!
Valerie: What's that?
Alexa: Gross and nasty. DUH.
by hu weed July 28, 2010
Something that is equally both gross and nasty.
A duck took a shit on Conan O'Brian the other night. Man, that was grasty!
by The San August 18, 2007