cliffy adjective 2noun 1forms 3 adjective2 •Abounding in cliffs.There is naked Nature,—inhumanly sincere, wasting no thought on man, nibbling at the cliffy shore where gulls wheel amid the spray. — 1865 •Characteristic of a cliff.HAG [...] 1. A rock or cliff; an abrupt, cliffy prominence. — 1900 noun1 •(slang) A cliffhanger (dramatic stopping point in a story).All your questions won't be answered in the first book. It may end on a cliffhanger that leads into book 2. It's a mild cliffy, but it's there none the less. — 2016 formscliffies · cliffier · cliffiest