hootenanny

1. (music) An informal, festive performance by folk singers, often including audience participation with the use of acoustic instruments.Examples: "The brain matches the mind-image of doughnuts to images and emotions stored in his brain’s memory regions: “Mmmm … doughnuts.” Then—bingo!—his brain’s dopamine-producing reward centres light up and have a rip-roaring hootenanny."; "It bespoke country’s devotion to realism, to songs about Saturday night’s hootenanny and Sunday morning’s moral reckoning, not to mention the kitchen-table truths of Monday through Friday."

2. (obsolete) A placeholder word for a nonspecific or forgotten thing.Synonyms: thingamajig, Sorted by number of Google hits, widget, hickey, gizmo, thingy, gimmick, thingie