粤典 (words.hk)香港词
意思類似「#何必」，但係就指對象因為做一個動作而受苦，表示唔值得、唔使自尋煩惱 ((used in rhetorical questions) why bother; not worth the trouble)
副詞用例
你明知人哋結咗婚重鍾意人，何苦呢？
nei5 ming4 zi1 jan4 dei6 git3 zo2 fan1 zung6 zung1 ji3 jan4, ho4 fu2 ne1?
Why suffer through his love if you knew that he was married all along?