No, it has nothing to do with feijoada, the Brazilian national dish.
One of the first things I noticed after coming into this neighborhood is the abundance of lovely green fruits fallen on the ground. When crushed, it smells good, like white-meat guava. This is feijoa, which I should try one of these days.
Some people seem to roast them. It must be good on a plate with a steak. I think I'll ask for my neighbors' permission to harvest fruits from their garden.