mumbo jumbo

noun3

1. •
   Any object of superstition; religious words and/or actions which are seen as superstitious or fraudulent.

   • Rev. Quack's healing services are little more than mumbo jumbo.
2. •
   Any confusing or meaningless speech; nonsense, gibberish.

   • Football lingo is mumbo jumbo to me.
3. •
   (historical) A deity or other supernatural being said to have been worshipped by certain West African peoples; an idol.

   • So likewise a day comes when the Runic Thor, with his Eddas, must withdraw into dimness; and many an African Mumbo-Jumbo and Indian Pawpaw be utterly abolished. — 1831