Definition & Meaning of "hocus-pocus"

What is the origin of 'hocus-pocus'?

The exact origin of "hocus-pocus" is uncertain, but it's believed to have originated as a nonsensical term associated with magic spells and incantations. One theory suggests that it may have derived from the Latin phrase "hoc est corpus" (meaning "this is the body"), which was historically used during the Christian ritual of transubstantiation.