【喻】【褒】字面意思是牙齒可以當作金子來使用，比喻講信用；說話算數。你即管問人哋，我幾時唔系牙齒當金使嘅？（你儘管問一下人，我甚麼時候不是一諾千金？）

(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