m̄-chai pòaⁿ-hǎng毋知半項

to know nothing

to know nothing; to feign ignorance

English Wiktionary, “毋知半項” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E6%AF%8B%E7%9F%A5%E5%8D%8A%E9%A0%85 · confidence: Medium (Wiktionary PH)