Breadcrumb Home > Dictionary > Index F foot-in-mouth disease: Meaning and Definition of Find definitions for: foot'-in-mouth' disease" Pronunciation: [key] — Informal (facetious) Informal (facetious). the habit of making inappropriate, insensitive, or imprudent statements. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. foot-in-mouth foot-lambert TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: eponymous Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language