If you botch something that you are doing, you do it badly or clumsily. It is a silly idea and he has botched it. a botched job. = bungle Botch up means the same as botch. I hate having builders botch up repairs on my house Hemingway complained that Nichols had `botched everything up'. = mess up
If you make a botch of something that you are doing, you botch it. I rather made a botch of that whole thing. = mess. to do something badly, because you have been careless or because you do not have the skill to do it properly. 'botch-up a piece of work, a job etc that has been badly or carelessly done