Here's a breakdown:
* Agora: Now
* fala: Speak (imperative form)
* Português: Portuguese
* Nossa: Ours
However, the phrase sounds a bit strange in English because the "Ours" part doesn't flow naturally. It could be interpreted as a strong and forceful call to speak Portuguese, perhaps emphasizing the ownership of the language.
Here are some alternative translations that sound more natural in English:
* Speak Portuguese now!
* Let's speak Portuguese!
* It's time to speak Portuguese!
The specific meaning of the phrase might depend on the context in which it is used.