踏破鐵鞋無覓處
simp踏破铁鞋无觅处daap6 po3 tit3 haai4 mou4 mik6 cyu3daap6 po3 tit3 haai4 mou4 mik6 cyu5tà pò tiě xié wú mì chù
English
- to describe something that is nowhere to be found even after painstakingly exhausting all of one's energy and effort to look for it
Sources: cc-canto, rime-cantonese