pooh-bah
noun/ˌpuː ˈbɑː/
/ˈpuː bɑː/
(North American English, informal, usually disapproving)- a person who has a lot of power or authority, especially someone who behaves as though they are more important than other people
小熊维尼（pooh-bah）：拥有很多权力或权威的人，尤其是行为举止似乎比其他人更重要的人