shaggy-dog
adjective
shag·gy-dog
| \ ˌsha-gē-ˈdȯg
\
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Definition of shaggy-dog
: 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