What do you call a half black half white person?

Answer 1

Historically people who were half white and half black were called mulatto; this term specifically described biracial people with one white and one black parent, or mulatto parents.

It's still used in numerous Latin American countries, including Brazil.

Other terms used to indicate people of multiracial origins - so-called half-and-half, as well as attempts to further define the perceived, believed or presumed mixture - were half-caste, mixed-race, octaroon, and many other terms, all of which are today considered offensive by many English-speakers.

Biracial or multiracial is also a term used in the United States and other English-speaking countries.

Terms which indicate exact, presumed, or approximate origins of a person are also used where it is thought necessary to identify someone's origins or the origins of a particular group, such as African-American; Irish-American, African-English; Anglo-American; Anglo-Indian; Indigenous Australian, Australian-American, Scottish-Canadian, and so on, and on.

Usually it's appropriate to leave it up to the person or people concerned to decide how they prefer to describe themselves, since applying any sort of personal or group label without consultation and consent can be perceived at best as bad manners, and at worst offensive, derogatory, or even abusive.

You can be called 'multiracial', mixed race, 'cafe' au lait', or 'mulatto' - that last term is (understandably) considered derogatory.

Mulatto, Bi-racial, mixed, hot

I like to call myself a zebra kid; however, I wouldn't recommend calling on that.

Answer 2

A person who is of both black and white descent is often referred to as biracial or mixed-race.