First attested in 1826. Borrowed from French mouton enragé (“a nickname given to French politician Nicolas de Condorcet by Turgot”), from mouton (“sheep”) + enragé, past participle of enrager (“to enrage”).
- A normally peaceful person who has become suddenly and uncharacteristically angry.
- Remember not to enter the monastery; those monks can be real moutons enragés.
- For quotations of use of this term, see Citations:mouton enragé.