brown phantom

A fart left in an empty room when company is visiting. The fart is dropped off and abandoned like a baby on a doorstep. Unlucky persons who happen into it often say "oh god!" and cover their mouth and nose as the unexpected smell haunts them to their very souls. Quickly closed doors and a small space inside can keep a room brown and haunted for a very long time.

Sam's party was great, but I found a brown phantom in his office.