daddy longlegs is a noun meaning "long-legged slender flies that resemble large mosquitoes but do not bite". It carries 2 recorded senses.
long-legged slender flies that resemble large mosquitoes but do not bite
spiderlike arachnid with a small rounded body and very long thin legs
Definitions, synonyms and semantic relations for daddy longlegs come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.