A plodder. College slang.

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1837.  

        A clever soul is one, I say,
Who wears a laughing face all day,
Who never misses declamation,
Nor cuts a stupid recitation,
And yet is no elaborate dig,
Nor for rank systems cares a fig.
‘Harvardiana,’ iii. 283: cited by B. H. Hall, ‘College Words,’ p. 159 (1856).    

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1849.  Not as a punishment, but as a recreation for digs.—‘Letter to a Young Man,’ p. 14. (N.E.D.)

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1863.  A ‘dig’ may be at times a genius, but a genius can never be a ‘dig.’Yale Lit. Mag., xxviii. 199 (April).

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1869.  I am going to study hard too, but I am not going to be a dig.—W. T. Washburn, ‘Fair Harvard,’ p. 21 (N.Y.).

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