hop·py I. \ˈhäpē, -pi\adjective (-er/-est) Etymology:hop (III) + -y 1.: abounding in hops 2.: having the bitter taste of hops — used especially of ale or beer II. noun (-es) slang: a drug addict III. adjective (-er/-est) Etymology:hop (II) + -y : characterized by a hopping step or movement < a restless, hoppy Frenchman — Ludwig Bemelmans > < a lively little blue crane with a hoppy leg — I.L.Idriess >