Hong Kong Code-mixing Dictionary

Definition: This is a Cantonese slang that refers to a situation where a player has a clear opportunity to score a point. The slangs origin comes from a volleyball game where a sports announcer said "Cha SIU" instead of the word "chance". Although the word came from a volleyball game initially, it's more widely used in badminton games.

Usage: That was a total set up for a smash, total Cha SIU!

Synonym: 食叉燒

Reference: https://zolimacitymag.com/pop-cantonese-生舊叉燒好過生你-better-to-give-birth-to-char-siu-than-you/#:~:text=Sik6%20caa1%20siu,back%20into%20its%20own%20court.