This is something that Americans talking about Rio de Janeiro need to be careful about. For instance, Tuesday morning on the Today show, Matt Lauer pronounced it "pau de açúcar," which does not mean sugarloaf.
Pau is a slang word for "penis" or "dick." So, Matt Lauer told everyone to go look at "Sugardick Mountain."
But it's actually a whole thing! And Brazilians have been making fun of gringos not being able to pronounce Pão de Açúcar for ages.
It could be way worse, though. A reader told BuzzFeed Brazil last year about a story where a gringo asked for directions to "Pão de Chuca" — which means "Anal Douche Bread."
