shaggy dog story

A "shaggy dog story" refers to a long and winding narrative or joke that appears to have a significant buildup and promise of a humorous or interesting conclusion, but ultimately ends abruptly with a punchline or resolution that is considered anti-climactic or trivial. These stories typically involve excessive details, often humorous or absurd, that might be irrelevant to the ultimate resolution. The purpose of a shaggy dog story is often to entertain through the unexpected and disappointing conclusion, creating a comic effect by building up anticipation that is never fully satisfied.