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Exclaimation that means "Oh, my God!", but is spelled phonetically. Can be heard as responses to many shocking and/or unbelieveable stories made by 15 year old girls.
Kelly: Ricky made out with this other girl last night, and I like, totally caught him.
Brittany: Omigaud! Suckssss...
Kelly: I know, right?
Brittany: Tcha!
by Emilie B. March 12, 2005
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