n Spanish person (rather uncharitable and slightly antiquated). I mean the term is uncharitable and antiquated, not the Spanish person in question. There are two possible etymologies: One is that it is a slightly abbreviated “Diego,” that being of course a popular Spanish name. It may also be a contraction of the town name San Diego (named after Santiago, a.k.a. St. James, the patron saint of Spain). The term is in use in the U.S. but, rather perversely, refers to Italians.