【喻】【褒】字面意思是牙齿可以当作金子来使用，比喻讲信用；说话算数。你即管问人哋，我几时唔系牙齿当金使嘅？（你尽管问一下人，我甚么时候不是一诺千金？）

(slang) one will put their words into actions; one will do what as they said; implying that someone is trustworthy, trusty and reliable; to describe where one's words are as good as gold