/ Dictionary / Index L loopy: Meaning and Definition of Find definitions for: loop•y Pronunciation: (l'pē), [key] — loop•i•er, loop•i•est. full of loops. eccentric; crazy; dotty. befuddled or confused, esp. due to intoxication. crafty; sly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: loopy (Thesaurus) loop window Loos Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language