
“Mumbo jumbo” has a surprising history: it is usually traced to a Mandinka name for a masked ceremonial figure in West Africa. It did not begin simply as an English expression for nonsense.
The phrase entered English through European travellers’ accounts of West African life. Those early accounts described a figure associated with ceremonies and the enforcement of community rules. The precise origin deserves some caution: the expression reached English through outsiders’ descriptions, rather than a straightforward translation of its modern meaning.
Over time, English speakers began using the phrase more broadly for language, ideas, or practices they considered confusing or meaningless. That dismissive meaning is the one learners are most likely to encounter today.
In everyday English, mumbo jumbo can describe an explanation that sounds complicated but seems to say very little. For example:
- “The advert was full of technical mumbo jumbo, so I still couldn’t tell what the product did.”
The speaker is not merely saying that the advert contains unfamiliar words. They are suggesting that its language is unhelpful or lacks real substance.
Use the expression carefully. Calling someone’s explanation mumbo jumbo can sound rude because it dismisses what they are saying. If you simply do not understand, a more neutral response is: “Could you explain that in simpler terms?” The modern English meaning should not be treated as a fair description of the cultural tradition behind the phrase.

