[f. TIN + -FUL.] As much as a tin will contain.

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1852.  Leicester Chron., 3 April, 4/1. When we run short of meat (and that very often happens), our Matthew brings a tinful o’ sour yal, an’ puts in into the trow.

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1896.  A. Morrison, Child of the Jago, 169. Tobacco pillaged from a tin-full his father had bought.

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