Finnegan pin n. a non-existent part or tool; a thing whose name is forgotten or unknown; a doo-dad or thingamajig. (source: Double-Tongued Dictionary)
Further reading
We use the term Milky Way for that glowing arc across the sky. But how people picture it varies from culture to culture. In Sweden, that starry band goes by a name that means “Winter Street,” and in Hawaii, a term for the Milky Way...
In the 1920’s, Americans were warned of a new danger sweeping across the country. This menace that harmed people’s health, ruined minds, and threatened marriages. The culprit? The national obsession with a new form of entertainment:...