Definition: Originated from 'thank you' with the ''f' often mistakened as an English mistake while it is known as TH-fronting, this is a code-mixing term used by upper class Hong Kongers to show their sincere gratitude towards someone.Usage: E.g. 今餐等我請啦。Fank you. (Let me treat you this meal. Thank you.)Synonym: Thank you, 多謝Reference: https://www.reddit.com/r/linguistics/comments/12to083/curious_about_some_british_people_pronounce_th_as/