Instead of using the word was. It is mostly used by Italians trying to formulate sentences in English.
What you wuzza do today?
You wuzza bitch.
I no wuzza bitch, you wuzza bitch.
Used in a conversation (Italian Accents)
Paulie: Why you wuzza put the tomato sauce in the frying pan?
Pasquale: I no wuzza put the tomato sauce in the frying pan; I wuzza put the sauce in the pot.
Paulie: Ayy, forgetaboutit