A sound that Algerians and eastern Moroccans make to say '' yes'', to show surprise, or agree to things.
A: I am going to America " US in the local language"
B: wah wah
A word used to show a form of excitement, or show off something cool or something ferda.
Junior: yo be-rye you wAnna get some pizza ferda
Be-rye: wah wah he'll yeah I do totally ferda broski.