: of, relating to, or being a long-drawn-out circumstantial story concerning an inconsequential happening that impresses the teller as humorous or interesting but the hearer as boring and pointless;
also: of, relating to, or being a similar humorous story whose humor lies in the pointlessness or irrelevance of the plot or punch line
a shaggy-dog comedy
shaggy-dog was our Word of the Day on 06/23/2011. Hear the podcast!