Submitted by György Chityil ... on Fri, 01/19/2018 - 20:43 Hierarchy: NounDescription: {{idiomatic|colloquial|often|humorous}} A person who is important or high-ranking.Ngram: grand poobahNgram Text: grand poobahSource: WiktionaryIssue: 0Wiktionary tag: oftenhumorousNgram Count: 2