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Phrase(s): spaz out
1. Sl. to overreact to something; to become overly excited about something. • I knew you would spaz out! But my grades are not that bad! • Come on, don’t spaz out! 2. Sl. an emotional display. (Usually spaz-out.) • There’s no need for a spaz-out! • She threw a hell of a spazout.
McGrawhill's American Idioms And Phrasal Verbs