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Related to mutton: Mutton fish, hogget
return to (one's) muttons
antiquated To return to a given topic or subject that one is discussing, explaining, ruminating over, talking about, etc. Taken from a humorous translation of the French idiom "revenons à nos moutons" (literally, "let us return to our sheep," which has the same meaning), which itself came from the medieval play La Farce de Maître Pathelin. The constable, frustrated with the drunkard's rambling explanation, bade him return to his muttons. But I have strayed off course from the lecture, so let us return to our muttons before we run out of time.
An outdated term for a prostitute. A: "I think that Lord Stewart is spending time with a laced mutton." B: "No, surely not!"
mutton dressed (up) as lamb(British informal)
an offensive way of saying that a woman is dressed in a style that is more suitable for a much younger woman Do you think this skirt is too short? I don't want to look like mutton dressed as lamb.