"Hocus" is a word often used to describe something that is done to deceive or trick someone. It can be used to refer to a magic trick or an illusion. Full definition
In October of 2013, Creature Features teamed with Disney's D23 to present an unprecedented celebration of HOCUS POCUS on the Disney lot in Los Angeles. (staging.creaturefeatures.com.s88154.gridserver.com)
I believe it's a bunch of hocus pocus meant to control the minds of primitive people... (religion.blogs.cnn.com)
Kathy Najimy, Bette Midler and Sarah Jessica Parker star in Hocus Pocus as the Sanderson sisters, three 17th - century witches who are brought back to life in Salem, Mass., in 1993. (npr.org)