blow-in n. an outsider; a carpetbagger. (source: Double-Tongued Dictionary)
Further reading
Catina from Abilene, Texas, says her young daughter and her friends fondly refer to each other with the word sigma. The slang terms sigma and sigma male were originally used in the manosphere to denote “an outsider,” and carried a...
Is there something inherent in English that makes it the linguistic equivalent of the Borg, dominating and consuming other languages in its path? No, not at all. The answer lies with politics and conquest rather than language itself. Plus: a new...
In the newspaper/magazine world, a “blow-in” is a separate sheet of advertising that is inserted between the pages of the newspaper/magazine by air pressure.
/s/ globalnomad
That’s right. It’s really too common for inclusion as a full entry here, however.