DIPPY Meaning of DIPPY in English dip ‧ py /ˈdɪpi/ BrE AmE adjective informal [ Date: 1800-1900 ; Origin: Perhaps from dipso 'drunk person' (19-21 centuries) , from dipsomaniac ] silly or crazy Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012