IRA FUROR BREVIS EST TheLaw.com Law Dictionary & Black's Law Dictionary 2nd Ed.Latin, meaning Anger is brief insanity. Related Posts:IPSO JUREFUROR CONTRAHI MATRIMONIUM NON SINIT QUIA CONSENSUS OPUS ESTFURNIVAL'S INNAB IRATOANGERIN VERBIS NON VERBA SED RES ET RATIO QUAERENDA EST