hub dot
n.— «The inside of this insert contained the actual Blu-ray disk. The disk was attached to the cardboard with a so-called “hub dot,” a small foam button used to fasten CDs and DVDs to all kinds of surfaces.» —“Helvetica Blu-Ray” Lovely Package Feb. 26, 2009. (source: Double-Tongued Dictionary)
Further reading
Funny cat videos and cute online photos inspire equally adorable slang terms we use to talk about them. • Also, when a salamander is not a salamander, the story of an Italian term for a dish towel used halfway across the world, Bozo buttons...
Vince from Brooklyn, New York, remembers growing up there and using the expression cut a chogi! to mean “beat it!” or “get away from here!” He’d assumed it was simply Brooklynese until years later in Alabama, when he...