Go bonkers is an informal phrase that means to become extremely excited or angry. The crossword solutions for this term are RAVE (4 letters), SNAP (4 letters), FLIP (4 letters), and LOSEIT (6 letters). RAVE is a verb meaning to talk wildly or enthusiastically, usually about something one is passionate about. SNAP is a verb meaning to make a sudden, sharp sound or movement. FLIP is a verb meaning to turn over suddenly or to cause to move with a sudden jerky motion. Loseit is a verb meaning to become very angry or upset.