Polaco is a Spanish derogatory term for a Catalan person. Its origins are not clear and all related theories are purely speculative, usually banking on the fact that the same word is also used to refer to the Polish people. The name appears across all Spain, though in particular in Madrid and in the regions neighboring Catalonia. Rarely present in literary language, it forms part of the slang vocabulary; its best-known usage is during sport competitions. In Catalonia the term is accepted and at times used once its derogatory flavor is wiped out or reversed, such as when telling Catalans from other Spaniards. In Poland the term is generally unknown.