fuck up

(noun) someone who makes mistakes because of incompetence. Synonyms: bungler, blunderer, fumbler, bumbler, stumbler, sad sack, botcher, butcher, fuckup.

(noun) an embarrassing mistake. Synonyms: blunder, blooper, bloomer, bungle, pratfall, foul-up, fuckup, flub, botch, boner, boo-boo.

(verb) make a mess of, destroy or ruin. Synonyms: botch, bodge, bumble, fumble, botch up, muff, blow, flub, screw up, ball up, spoil, muck up, bungle, fluff, bollix, bollix up, bollocks, bollocks up, bobble, mishandle, louse up, foul up, mess up, fuck up. Examples: "I botched the dinner and we had to eat out." "The pianist screwed up the difficult passage in the second movement."