Furby

A hellspawn of a toy from the 80's that is notorious for making demonic noises in the middle of the night even when the batteries have been removed.

Person 1: dude you look like shit, are you ok?
Person 2: I didn't get any sleep last night.
Person 1: how come?
Person 2: the demon known as Coco the Furby has reawakened from his 16 year slumber.

Will Smith

An interdimensional being that can devour planets and has the ability to control time and space.

Person 1: hey looks, there's the moon!
Person 2: ooo it's so pretty!
Person 1: oh fuck Will Smith just ate it.