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Bonnafest is common slang created in Boston and it's north shore. It is a bastardization of two words in Italian.

It means, good, fine, acceptable, delicious, and other good things.
"I ate at the new Japanese place."
"How was it?"
"Oh man, bonnafest!!!
by Mr. Frenson August 07, 2017
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Apr 21 Word of the Day
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by Francesco II March 20, 2021
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