/ Dictionary / Index S slop pail: Meaning and Definition of Find definitions for: slop' pail" Pronunciation: [key] a pail for conveying slop in feeding livestock, esp. pigs. a pail into which household slop is collected for disposal. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. slop-over sloppy Related Content Daily Word Quiz: supercilious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language