In general, this is when a person is acting a fool, wildin out, or just being a straight-up buster. Needs no additional explanation, really.
I'm so sick and tired of all these clowns turdburglin' when we're trying to get some work done.
A Mystical being known to come from the anal realm; see also - Ass Fairy
One night i awoke from a deep sleep and found a disgusting creature with wings flying around my bed, when it realized i was looking at it, it then vanished into my naked rear end. it obviously was a sphincter fairy.