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Sarcasm mixed with a generous helping of bitterness.
Sarcastic, angry and bitter at the world, especially men, Noodle is sarcaustic.
by L.A.R.S.O. March 23, 2006
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3
A personality trait or state of being in which one has become so sarcastic that it has burned metaphorical bridges or corroded one or more personal relationships.
Brent has become sarcaustic, making it impossible to engage him in friendly conversation.
by Lazy Sour June 12, 2016
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