Definition: A romanised code-mixing phrase used by foreigners when they come across a local Hong Konger who thinks they know how to speak Cantonese. Literal meaning: I don't know how to speak Cantonese.Usage: E.g. Foreigner: Mm goi sai! Dor jeh!
Hong Konger: Wow, your Cantonese is so good!
Foreigner: Ngo mm sik gong gwong dong wa.Synonym: 我唔識講廣東話Reference: https://www.timeout.com/hong-kong/travel/basic-cantonese-phrases-every-traveller-to-hong-kong-needs-to-know
