owl in a bucket
A fib so intricate in details that one may question whether it is a lie. For instance, when a deceased owl winds up in a bucket, one tells a story of how the young owlet was being taught by its parents how to hunt, colliding with a phone phone, and meeting its demise in one yellow pail. The story is an absolute lie.
He said our neighbor started the fight with him, but that was owl in a bucket.