E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Got the Mitten.
Jilted; got his dismissal. The word is from the Latin mitto, to dismiss.
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There is a young lady I have set my heart on; though whether she is agoin to give me hern, or give me the mitten, I aint quite satisfied.Sam Slick: Human Nature, p. 90.