I was in a churrasqueira and the gent behind the counter was asking if I wanted my bifanas on bread. And what he said (twice because I literally did not understand) sounded like “em pô”. As I left, he said boa noiche. So I assume this is a Brazilian variant but wanted to as if this is a common pronunciation?
@MeuDeus, boa noitche sounds like Brazilian Portuguese, yes. Regarding the word pão, I don’t know what you heard exactly, so there’s not much I can say. To my ears, the average PT-PT and PT-BR pronunciations of that word don’t really differ much, but maybe you found an exception 