What does haffi mean?

"Haffi" is a slang term that means "have to" or "must". It's a common expression in Caribbean English, particularly in Jamaica.

For example:

* "Mi haffi go to work now." (I have to go to work now.)

* "You haffi be quiet." (You must be quiet.)

The word is a contraction of "have to", and it's used to emphasize obligation or necessity.