Fafa

A wrong interpretation of “fa2”.

“Fa2” means “fatoe”, which is Dutch slang for “joke”.
The interpretation is derived from mistaking “fa2” for “fa” multiplied by 2, so “fafa”.
“Fafa” is adopted by a very small group to have the same definition as “fatoe”

1: Dion: “That was a little fafa.”
Patek: “Ah, good one.”

2: Nicky: “Hahaha what a fafa”
Flip: “fafa?! What does that mean”
Nicky: “ Fa2; fafa right?”
Flip: “No, fa2 means fatoe hahah”