1. [n]  an embarrassing mistake
2. [v]  make a mess of, destroy or ruin

1. \Botch\, n.; pl. {Botches}. [Same as Boss a stud. For
   senses 2 & 3 cf. D. botsen to beat, akin to E. beat.]
   1. A swelling on the skin; a large ulcerous affection; a
      boil; an eruptive disease. [Obs. or Dial.]
            Botches and blains must all his flesh emboss.
                                                  --Milton.
   2. A patch put on, or a part of a garment patched or mended
      in a clumsy manner.
   3. Work done in a bungling manner; a clumsy performance; a
      piece of work, or a place in work, marred in the doing, or
      not properly finished; a bungle.
            To leave no rubs nor botches in the work. --Shak.
   

2. \Botch\, v. t. [imp. & p. p. {Botched}; p. pr. & vb. n.
   {Botching}.] [See {Botch}, n.]
   1. To mark with, or as with, botches.
            Young Hylas, botched with stains.     --Garth.
   2. To repair; to mend; esp. to patch in a clumsy or imperfect
      manner, as a garment; -- sometimes with up.
            Sick bodies . . . to be kept and botched up for a
            time.                                 --Robynson
                                                  (More's
                                                  Utopia).
   3. To put together unsuitably or unskillfully; to express or
      perform in a bungling manner; to spoil or mar, as by
      unskillful work.
            For treason botched in rhyme will be thy bane.
                                                  --Dryden.
   

the name given in Deut. 28:27, 35 to one of the Egyptian plagues (Ex. 9:9). The word so translated is usually rendered "boil" (q.v.).