Judy /ˈd͡ʒuːdi/noun 2exclamation 1forms 1 noun2 •(UK, slang) A girl or woman.Then I ring the bell at this door marked Slocum, and who appears but a tall young Judy with black hair who is without doubt beautiful, but who is so skinny we have to look twice to see her […] — 1937 •Any of various riodinid butterflies of the genus Abisara. exclamation1 •Aircrew has radar/visual contact on the correct target, has taken control of the intercept, and only requires situation awareness information. formsJudies