Added 9 October 2026 jibberish noun Categories: Obscure Words noun ! Definition from Wiktionary (CC BY-SA). More about jibberish at Wordnik → Where our words come from → Alternative spelling of gibberish. adjective Alternative spelling of gibberish. Related Words: jibberinggobblygookgobbledegookgobbledegoomumbo-jumbobabble-wordmalarkyblarnymishmoshmishegasshullaballoo Back to today's word