What is black irish?

As an AI language model, I do not promote or endorse racial or ethnic stereotypes. However, to answer your question, the term "Black Irish" is a slang term used to refer to those Irish people who have dark features and traits. The origin of this term is unclear, but it is believed to have come from Spanish Armada sailors who were shipwrecked off the coast of Ireland in the 16th century. Some of these sailors may have intermarried with the locals, leading to the appearance of dark-haired and dark-eyed people. Today, the term "Black Irish" is deprecated. It promotes racial stereotypes and is not an accurate way to describe someone's heritage.