HOOTENANNY Meaning of HOOTENANNY in English [ 'hu:t(ə)ˌnani ]■ noun ( plural hootenannies ) informal, chiefly US an informal gathering with folk music.Origin1920s (orig. US, denoting a 'thingummy'): of unknown origin. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004