A remix of the term, "Party Foul".

Usually an exclaimation from a social gathering when something goes wrong. So, any comment or action that results from someone screwing up, or, just being stupid, will receive an "OH, FIESTA FOUL!"
Brian: Bro, Kevin just hooked up with Austin's girlfriend

Taylor: Oh shit, FIESTA FOUL!

Kayla spills beer on Lindsay's new white shirt.

Alex: Fiesta foul!!!
by partygirl16 October 7, 2011
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