/ Dictionary / Index T turned-on: Meaning and Definition of Find definitions for: turned-on Pronunciation: (tûrnd'on', -ôn'), [key] — adj. Slang. lively and chic; switched-on. full of or characterized by excitement. under the influence of a narcotic or hallucinogen, as marijuana. sexually aroused. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: turned-on (Thesaurus) turned comma turner Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language