The Chongka (Chewbongka) is the further development of a Bongka. The Bongka is a Forward Loop into Flaka and got invented by Tonky Frans and the Chewbongka is a Cheese Roll into a Flaka invented by Balz Müller.

Chewbongka by Balz Müller

Chewbongka by Balz Müller