what's your problem ; what's wrong you ; what's gotten into you? [colloquial]
Definitions (粵典–words.hk)
語句
發咩神經，做乜鬼野。質問對方點解無啦啦做埋啲奇怪行為。 a question expressing aggression or scepticism, "what's your problem?", "what are you getting so worked up about?".
你又黐咩筋呀？咁大力閂門做咩？
你又黐咩筋呀？咁大力闩门做咩？
What's your problem? Why close the door so vigorously?
Examples (粵典–words.hk)
Cantonese
你又黐咩筋呀？咁大力闩门做咩？
你又黐咩筋呀？咁大力閂門做咩？
What's your problem? Why close the door so vigorously?