Usage: "A Screech-In sounds like something a frustrated ornithologist might indulge in, or a Beltway ritual for stressed-out drivers. But in Newfoundland, it's a traditional ceremony to induct CFAs ("come-from-aways," Newfese for tourists) into the Royal Order of Screechers and thus make them honorary Newfies." --Paula Stone, "A Trip Off the Old Rock," Washington Post, Sunday, April 22, 2007; Page P01.
In Ireland, a come-from-away is generally referred to as a blow-in. One does not have to be a foreigner for the designation to apply; typically, it is used to refer to anyone from the next parish, or the next village. For any given individual, the designation is permanent and cannot be invalidated by silly criteria such as length of residency. If a family of blow-ins is particularly disliked by the natives, the term may be used for several generations.