To settle down carelessly.

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1840.  Jist come in, and take off your things, and lop down, if you’re a mind to, while we ’re a getting supper.—Mrs. Kirkland, ‘A New Home,’ p. 20.

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1878.  I’d lopped down onto the sofy, when I happened to think I’d hev tea early.—Rose T. Cooke, ‘Happy Dodd,’ chap. xxv.

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