ppl. adj. (colloquial).—False; counterfeit; worthless; Cf., DUFF and DUFFER.

1

  1862.  London Herald, 27 Dec. ‘Answers to Correspondents.’ Houses burdened with ninety years repairing leases and heavy ground rents are run up by the ‘DUFFING’ builder, merely for sale.

2

  1873.  Times, Jan. We know now that so-called ‘DUFFING’ jewellery is scattered far and wide over the land.

3

  1877.  W. H. THOMSON, Five Years’ Penal Servitude, iii. 239. A ‘shise’ half-bull and a ‘DUFFING’ tanner: half-a-crown and a sixpence quietly palmed off on this man out of his half-sovereign.

4