发疯 fāfēng to go crazy Origin Definitions Defs Strokes Stroke Words Sentences Sents fāfēng to go crazy 发 發 fā verb to happen To occur; to take place; to come into existence疯 瘋 fēng adjective crazy insane; mad; mentally derangedfāfēng to act insane 发 發 fā verb to show To manifest or express a feeling or emotion, such as anger疯 瘋 fēng verb to play wildly to play without restraint; to run wild; to be uninhibited in one's play