botch は【（下手なために）だいなしにする，しくじる】という意味の動詞（vt）です．あるいはもっと悪い【下手に繕う】です．名詞も botch で【不細工な仕事，不手際，やりそこない】となります．
Newsweek.com における出現頻度：最重要単語（記事中で２年間で１００回以上）
Life is the only art that we are required to practice without preparation, and without being allowed the preliminary trials, the failures and botches, that are essential for training.
-- Lewis Mumford, American Social Philosopher
His father died from infection from botched surgery.
彼のお父さんは下手な手術から感染症にかかり，死亡した．