mum·bo-jum·bo/`mʌmbo `dʒʌmbo; ˌmʌmbəʊ ˈdʒʌmbəʊ/ n [U] informal a belief that you think is nonsense, especially because it cannot be proved 【非正式】 〔尤指不能被证明的〕荒谬的信仰; 莫名其妙的话: Surely you don't believe in astrology and all that mumbo-jumbo! 想必你不会相信占星术和所有那些胡话！