鬼打 gwai² daa² {guǐ dǎ}

unbelievably; outrageously; (exclamatory phrase) 鬼打!: utterly impossible!; sheer nonsense!; simply absurb!; nothing of the sort!; 鬼打呀! / 鬼打咩!: "you must have been possessed"; "what has gotten into you!"; "what's up with you"