Hong Kong Code-mixing Dictionary

Definition: A code-mixing term that native Hong Kongers use as a more socially appealing way to refer to a conversation that goes beneath the surface to explore a person's inner thoughts, which everyone knows it can be hard to initiate with someone or even mention.

Usage: E.g. 但每個人對deep talk既定義都唔同。我本身覺得deep talk應該係d要用下腦既話題 (But everyone's definition of deep talk is different. I actually think deep talk should refer to topics that require us to think a little bit.)

Synonym: 深度對話

Reference: https://lihkg.com/thread/3598156/page/1