Hong Kong Code-mixing Dictionary

Definition: Known as Kongish, this is a code-mixing phrase that native Hong Kongers use to describe someone being forgetful and careless, such as forgetting their keys or where they put their phone. (大頭蝦 - daai6 tau4 haa1)

Usage: E.g. A: You forgot to bring your wallet? Such a big head shrimp!

Synonym: 大頭蝦

Reference: https://zolimacitymag.com/pop-cantonese-大頭蝦-big-head-prawn-language-hong-kong/