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mumbo jumbo

noun [U]
 
 
/ˌmʌm.bəʊˈdʒʌm.bəʊ/ US  /-boʊˈdʒʌm.boʊ/ informal

Definition

words or activities that seem complicated or mysterious but have no real meaning: You don't believe in horoscopes and all that mumbo jumbo, do you?Nonsense
(Definition of mumbo jumbo noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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