/ Dictionary / Index S Sloppy Joe: Meaning and Definition of Find definitions for: Slop'py Joe' Pronunciation: [key] a sandwich of ground beef cooked in a spicy tomato or barbecue sauce and usually served on a bun. a baggy, overlarge sweater originally worn by girls and young women in the 1940s. a man or youth whose appearance is habitually slovenly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sloppy Sloppy Joe's Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language