Toy Job
A job one keeps not out of need, but out of boredom/personal amusement. Generally, these aren't high-paying, high-stress positions, and are usually held by people with existing financial stability
I got so bored last summer, sitting on the yacht all day long, that I got myself a toy job giving lap dances over at Tootsies. The pay's not great, but the freebies and gossip make it worth it.