1. (

• 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

) make a mess of, destroy or ruin; "I botched the dinner and we had to eat out"; "the pianist screwed up the difficult passage in the second movement" ;

2. (

• mismanage ,
• mishandle ,
• misconduct

) manage badly or incompetently; "The funds were mismanaged" ;