A phrase used in place of "no worries". Typically recognised by autocorrect more so than the original phrase.
Originating from Australian slang "wozza" meaning worry.
Guy: Mate did you grab my charger before we left?
Fella: Shit I forgot. Sorry pal.
Guy: That's alright Friend, I'll grab one from Buddy when we get there.
Fella: No wozzas!