duff

n. the buttocks; as, get off your duff and get to work. [ slang ]
Syn. -- rump; ass. [ ]

v. t. [ imp. & p. p. Duffed; p. pr. & vb. n. Duffing. ] [ Etym. uncertain. ] [ Colloq. or Slang ] 1. To treat or manipulate so as to give a specious appearance to; to fake; hence, to cheat. [ Webster 1913 Suppl. ]

2. In Australia, to alter the brands on (cattle, horses, etc.); to steal (cattle, etc.), and alter their brands. [ Webster 1913 Suppl. ]

n. [ D. duffel, from Duffel, a town not far from Antwerp. ] 1. A kind of coarse woolen cloth, having a thick nap or frieze. [ Written also duffle. ] [ 1913 Webster ]

Good duffel gray and flannel fine. Wordsworth. [ 1913 Webster ]

2. Outfit or suppplies, collectively; kit. [ Colloq., U. S. ] [ Webster 1913 Suppl. ]

. A sack to hold miscellaneous articles, as tools, supplies, or the like. [ Webster 1913 Suppl. ]

n. 1. (Mining) See Shicer. [ Webster 1913 Suppl. ]

2. (Zool.) Any common domestic pigeon. [ Webster 1913 Suppl. ]

n. 1. A peddler or hawker, especially of cheap, flashy articles, as sham jewelry; hence, a sham or cheat. [ Slang, Eng. ] Halliwell. [ 1913 Webster ]

2. A stupid, awkward, inefficient person.[ Slang ] [ 1913 Webster ]

n. One who duffs cattle, etc. [ Australia ]

Unluckily, cattle stealers are by no means so rare as would be desirable; they are locally known as duffers. Baden-Powell. [ Webster 1913 Suppl. ]