foot-in-mouth disease

noun, Informal: Facetious.
1.
the habit of making inappropriate, insensitive, or imprudent statements.
Origin
1965-70; pun on foot-and-mouth disease, with allusion to foot-in-mouth
Slang definitions & phrases for foot-in-mouth disease

foot-in-mouth disease

noun phrase

The uttering of embarrassing, stupid, or indiscreet speech: Pat Robertson, who regularly displays symptoms of foot-in-mouth disease

[1960s+; blend of the veterinary term hoof-andmouth disease and the idiom put one's foot in one's mouth; put one's foot in it, ''blunder foolishly,'' is found by 1858]