An amusing story.

Something said or done for amusement, not in seriousness.

(figurative) The root cause or main issue, especially an unexpected one

(figurative) A laughably worthless thing or person; a sham.

(figurative) Something that is far easier or far less challenging than expected.

(intransitive) To do or say something for amusement rather than seriously.

(intransitive, followed by with) To dupe in a friendly manner for amusement; to mess with, play with.