slang. [f. prec.] intr. To work hard at one’s studies. Also trans. to ‘get up,’ ‘mug up’ (a subject).

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1860.  Slang Dict. (ed. 2), Swot,… to work hard for an examination, to be diligent in one’s studies.—Army.

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1866.  [see prec. 2].

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1899.  E. Phillpotts, Human Boy, 120. He was swatting like anything in play-hours for a special Old Testament history prize.

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1908.  Athenæum, 25 July, 93/2. It is the case that boys deliberately set themselves to ‘slack’ or ‘swot’ for longer or shorter periods.

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