4 [v] ~ (out) (informal) to become very angry, excited or unable to think clearly: She finally flipped under the pressure. He completely flipped when he saw the mess in the kitchen.
3 to yield to mental or emotional stress - a movie about a submarine captain who flips when there's an emergency, leaving the crew to deal with it themselves -- see CRACK 2 [crack 2 to yield to mental or emotional stress - after hours of tough questioning the suspect finally cracked and blurted out a confession, Synonyms break (down), flip, freak (out)]http://flip.bluerider.com/wordsearch/flip
9) go mad, go crazy; "He flipped when he heard that he was being laid off"
Synonyms : flip_outhttp://www.bartleby.com/61/78/F0187800.html
6. Slang a. To go crazy. Often used with out. b. To react strongly and especially enthusiastically: She flipped over the new car.
to flip vi
5. (sl: go mad) durchdrehen fam, ausrasten sl, ausflippen fam; (fig: be enthusiastic) ganz [o völlig] aus dem Häuschen sein fam