flap
n.— Note: Perhaps related to the noun meaning of flap, “a state of agitation; a panic.” «His face lit up when he talked about a “flap,” a term used to describe a large number of UFO reports, one March sometime in the late 1990s.» —“His eye is stuck on the sky” by Julia Spitz MetroWest Daily News (Framingham, Massachusetts) Oct. 7, 2007. (source: Double-Tongued Dictionary)
Further reading
Mary Beth in Greenville, South Carolina, wonders: Why do we say four-oh-nine for the number 409 instead of four-zero-nine or four-aught-nine? What are the rules for saying either zero or oh or aught or ought to indicate that arithmetical symbol...
Astronauts returning from space say they experience what’s called the overview effect, a new understanding of the fragility of our planet and our need to reflect on what humans all share as a species. A book about the end of the universe...
My parent’s generation, young adults in WWII, called fussing over something “getting into a flap over” it. Perhaps derives from “flapdoodle”?
Perhaps. You’re ahead of my note-adding, but I’ll add one to this catchword shortly.