Top Definition
(1) Refers to a variety of hot-tempered Portuguese-American women found in the greater Fall River - New Bedford Area

(2) Any woman of Portuguese ancestry who might become easily infuriated by (a) Unclean or broken decorative plates, (b) furniture without plastic covering, or (c) substantial shortages of Madeira wine.
Jim, how's your Portubeast? I hear she made you sleep outside because you interfered with her cleaning.
by CapybaraCanberra March 30, 2009

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