Definition
A tendency to make remarks that are embarrassingly wrong or inappropriate.
Origins
Humorous conflation of foot-and-mouth disease and put one's foot in one's mouth.
In Context
- "They attempt to straddle all issues and, consequently, when a slip occurs, the result is foot-in-mouth disease."
- "Maybe you suffer from foot-in-mouth disease, too, at least occasionally. If so, then I expect you've also learned about the remedy."