khau-hǐ-sái剾耳屎

to remove earwax

to remove earwax (from one's ear)

English Wiktionary, “剾耳屎” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E5%89%BE%E8%80%B3%E5%B1%8E · confidence: Medium (Wiktionary)