Top Definition
Someone who goes nuts over all things pittsburgh, i.e. the penguins, the steelers, Primanti Brothers. Male Berillo's usual mate with a crazy bitch.
stop being such a berrillo over the Penguins winning the stanley cup.

Only a Berillo would marry a crazy bitch like Katie
by broenick July 01, 2009
5 Words related to berrillo

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