Hootenanny

Noun

 * 1)  A Placeholder word for a nonspecific or forgotten thing (see thingamajig, whatchamacallit)
 * 2) An informal, festive performance by folk singers, often including audience participation with the use of acoustic instruments.

Thesaurus
affair, article, artifact, choral service, dingus, dofunny, dohickey, dojigger, dojiggy, domajig, domajigger, doodad, dowhacky, eisteddfod, eppes, etwas, farewell performance, flumadiddle, folk-music festival, folk-sing, gadget, gigamaree, gimmick, gizmo, hickey, hootmalalie, jam session, jigger, material thing, music festival, musicale, object, opera festival, quelque chose, rock festival, service of song, sing, sing-in, singfest, singing, something, swan song, thing, thingum, thingumabob, thingumadad, thingumadoodle, thingumajig, thingumajigger, thingumaree, thingummy, whatchy, widget

Etymology 1
Unknown; potentially Scottish. Use is tied to the Appalachian culture in the US.

Pronunciation

 * {{SAMPA|/"hU:t@n{ni:/}}