Définitions
1.Adjectivecomparative form of duff: more duff
2.NounAn incompetent, indolent, or clumsy person.
3.NounA player having little skill, especially a golfer who duffs.
4.NounA pedlar or hawker, especially one selling cheap or substandard goods.
5.NounCheap or substandard goods sold by a duffer.
6.NounAnything substandard, such as a counterfeit or a defective instance.
7.NounA cow that does not produce milk or produces substantially less than her peers do.
8.NounA cattle thief or thief of other livestock; one who alters the brands of cattle.
9.NounA racing pigeon that does not perform well.
10.NounAny of various nymphalid butterflies of the genus Discophora.