Definition of horny adjective in Oxford Advanced Learner's Dictionary. Meaning , pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. The meaning of HORNY is of or made of horn. How to use horny in a sentence. Horny what does it mean ! | Learn English - Discover the surprising meanings of this confusing word. Master English slang & avoid embarrassing mistakes! Learn the English definition and meaning of Horny with examples, pronunciation, and translations to enhance your vocabulary.