What?![]()
Portuguese people, much like the cariocas (who are heavily portuguese), do indeed pronounce "Lishboa", that is, the "s" like a "x". People from São Paulo, Minas Gerais, the South and indeed most places in Brazil will say something like "Lizboa". Portuguese folks and cariocas also pronounce "luish" instead of "luiz".
There is also a tendency to pronounce "e" like "i", hence the "Mondeehgo" ("ee" in english sounds like "i" in portuguese). You people do talk funny.