The DICT Development Group

  darned \darned\ adj.
     an intensifying expletive; a eupehmism for damned; as, for
     no darned reason at all.
  
     Syn: blasted, blessed, damn, damned, deuced, goddam, goddamn,
          goddamned, gosh-darned.
          [WordNet 1.5]

  Darn \Darn\ (d[aum]rn), v. t. [imp. & p. p. Darned
     (d[aum]rnd); p. pr. & vb. n. Darning.] [OE. derne, prob. of
     Celtic origin; cf. W. darnio to piece, break in pieces, W. &
     Arm. to E. tear. Cf. Tear, v. t.]
     To mend as a rent or hole, with interlacing stitches of yarn
     or thread by means of a needle; to sew together with yarn or
     thread.
     [1913 Webster]
  
           He spent every day ten hours in his closet, in darning
           his stockings.                           --Swift.
     [1913 Webster]
  
     Darning last. See under Last.
  
     Darning needle.
     (a) A long, strong needle for mending holes or rents,
         especially in stockings.
     (b) (Zool.) Any species of dragon fly, having a long,
         cylindrical body, resembling a needle. These flies are
         harmless and without stings.
  
     Note: [In this sense, usually written with a hyphen.] Called
           also devil's darning-needle.
           [1913 Webster]

  darned
      adj 1: expletives used informally as intensifiers; "he's a
             blasted idiot"; "it's a blamed shame"; "a blame cold
             winter"; "not a blessed dime"; "I'll be damned (or
             blessed or darned or goddamned) if I'll do any such
             thing"; "he's a damn (or goddam or goddamned) fool"; "a
             deuced idiot"; "an infernal nuisance" [syn: blasted,
             blame, blamed, blessed, damn, damned, darned,
             deuced, goddam, goddamn, goddamned, infernal]