/ Dictionary / Index B buck slip: Meaning and Definition of Find definitions for: buck' slip" Pronunciation: [key] a paper attached to and showing the destination and source of an interoffice memorandum, file, or the like. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. buckskin buckstay Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language