/ Dictionary / Index J josser: Meaning and Definition of Find definitions for: jos•ser Pronunciation: ( jos'ur), [key] — n. Brit. Slang. fellow, esp. one who is or is made to appear foolish or simpleminded. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. joss joss house Related Content Daily Word Quiz: penury Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language