Botch

Etymology
From bocchen:

Verb

 * 1)  To perform (a task) in an unacceptable or incompetent manner; to make a mess of something; to ruin; to bungle; to spoil; to destroy.
 * A botched haircut seems to take forever to grow out.
 * 1) To do something without skill, without care, or clumsily.

Noun

 * 1) An action, job, or task that has been performed very badly.
 * 2) A ruined, defective, or clumsy piece of work; mess; bungle.
 * 3) A mistake that is very stupid or embarrassing.
 * 4) A messy, disorderly or confusing combination; conglomeration; hodgepodge.
 * 5) A visible rash or swelling on the skin; a boil.

Thesaurus
anamorphosis, bad job, bad likeness, bat out, be all thumbs, bevue, bitch up, blight, blow, blunder, blunder away, blunder into, blunder on, blunder upon, bobble, boggle, bollix, bonehead play, boner, boo-boo, botchery, bugger up, bumble, bungle, bungling, burlesque, butcher, caricature, clumsy performance, cobble, commit a gaffe, confuse, dash off, daub, destroy, disorder, distortion, do anyhow, do by halves, do carelessly, do offhand, dub, error, etourderie, fake up, faux pas, fiasco, flounder, flub, fluff, flunk, foozle, fudge up, fumble, gaffe, gaucherie, goof up, gum up, haphazardness, hash, indiscretion, jury-rig, knock off, knock out, knock together, lash up, loose ends, louse up, lumber, make a blunder, make a misstep, mangle, mar, mess, mess up, messiness, misconduct, miscue, misdraw, mishandle, mismanage, mispaint, misspeak, mistake, mix-up, muck, muck up, mucker, muddle, muff, mull, murder, muss, mutilate, off day, parody, patch, patch together, patch up, play havoc with, play hell with, pound out, rough out, roughcast, roughhew, ruin, sad work, scratch, screw up, scribble, shambles, slap up, slapdash, slip, slipshoddiness, slipshodness, sloppiness, slovenliness, slovenly performance, slovenry, sluttishness, solecism, spoil, stumble, stupidity, throw off, throw together, tinker, toss off, toss out, toss together, travesty, trifle with, trip, untidiness, washout, whomp up, wreck