What is a slang term in Portuguese for what Brazilians call other Brazilians?

There isn't one specific slang term in Portuguese for what Brazilians call other Brazilians. Brazilians use various terms, depending on context and region.

However, some common terms include:

* Brasileiro/Brasileira: This is the formal, standard term for "Brazilian."

* Bráz: This is a more informal and friendly term, similar to "Bro" in English.

* Carioca: This is a term for someone from Rio de Janeiro.

* Paulista: This is a term for someone from São Paulo.

* Mineiro: This is a term for someone from Minas Gerais.

* Nordestino: This is a term for someone from the Northeast region of Brazil.

* Gaúcho: This is a term for someone from the South region of Brazil.

You can also use the more general terms like "gente" (people) or "pessoal" (folks) to refer to fellow Brazilians.

Ultimately, the best term to use will depend on the context and the relationship between the speakers.