/ Dictionary / Index K knees-up: Meaning and Definition of Find definitions for: knees-up Pronunciation: (nēz'up"), [key] — n. Brit. Informal. a party or lively gathering, usually including dancing. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. knee-sprung knell Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language