flip out* at English => English (English Thesaurus) Of Explained:
[V] (Insanity): be insane, become insane, lose one's mind, go mad, run mad, rave, lose one's marbles*, go crazy, go bonkers*, flip out*, have a screw loose*, lose one's head.
[V] (Insanity): be insane, become insane, lose one's mind, go mad, run mad, rave, lose one's marbles*, go crazy, go bonkers*, flip out*, have a screw loose*, lose one's head.