Hong Kong Code-mixing Dictionary

Definition: Often used as 'Ah sir' (阿sir), this is a code-mixing term that Hong Kongers use to refer to a male teacher. (Also see 'Missy' for female teacher)

Usage: E.g. 阿sir，我今日冇帶功課。可唔可以唔好罰我呀？

Reference: http://www.cmi.hku.hk/Ref/Article/article02/01.html

Definition: Pronounced as '痾打', this is a more elegant term that refers to the Cantonese equivalent（落單）for placing orders.  Sometimes, it is used by the police when giving instructions to the subordinates.

Usage: E.g. D野仲未黎既？我落左order好耐喇喎。快D吹吓佢。E.g. 警察：This is an order! Understand?! 下屬：Yes, sir!

Synonym: 落單

Reference: https://www.gushiciku.cn/dl/0pydp/zh-hk