Where it is said
- Rio Grande do Sul· strongly associated
How it is used
The signature gaúcho interjection, thrown in at the start of a sentence to express astonishment or emphasis ('Bah, que frio!'). Aulete labels it explicitly as Rio Grande do Sul.
Examples
Bah, essa notícia pegou todo mundo de surpresa.
Bah, that news caught everyone by surprise.
O amigo gaúcho respondeu só com um bah prolongado.
The friend from the South answered only with a drawn out bah.