daddy-long-legs
noun /ˌdædi ˈlɒŋ leɡz/
  /ˌdædi ˈlɔːŋ leɡz/
 (plural daddy-long-legs)
 (informal)- a crane fly (= a flying insect with very long legs)Topics Insects, worms, etc.c2
- (North American English) (also harvestman British and North American English)a small creature like a spider with very long legsTopics Insects, worms, etc.c2