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1.
Verb: When something is so disgusting, it has to be fantastic. Mainly used for food descriptions or colon releases.
"Putting maple syrup in your tea? That's raunchtastic!"

"You dipped your sausage in milk? That's raunchtastic!"

"That turd was so long! It was totally raunchtastic!"
by AwesomeSauce (teh 0riginal) February 17, 2009