粵典 (words.hk)香港詞
神經失常；用嚟講啲人做啲唔合理嘅行為 (to turn insane; to perform insane actions)
動詞用例
佢一起身就係噉鬧人，都唔知佢發咩神經。
keoi5 jat1 hei2 san1 zau6 hai6 gam2 naau6 jan4, dou1 m4 zi1 keoi5 faat3 me1 san4 ging1.
He keeps scolding people right from the moment he woke up, there must be something wrong with him.