BATTY Meaning of BATTY in English bat ‧ ty /ˈbæti/ BrE AmE adjective [ Date: 1900-2000 ; Origin: ⇨ ↑ bat 1 (7) ] slightly crazy, but not in an unpleasant or frightening way SYN nutty Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012