/ Dictionary / Index J jimjams: Meaning and Definition of Find definitions for: jim•jams Pronunciation: ( jim'jamz"), [key] — n. (used with a pl. v.) Slang. extreme nervousness; jitters. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. jiminy jimmie Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language