装神弄鬼

1. • to pretend to be in contact with supernatural beings (idiom) (fig.) to create a false sense of mystery to play tricks to deceive or scare others to engage in hocus-pocus

     lit.

Character by character

• 装(zhuāng)adornment
• 神(shén)God
• 弄(nòng)do
• 鬼(guǐ)disembodied spirit