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rude slang To jumble up or ruin something. A noun can be used before or after "up." Boy, you really botched up this report—I'm not sure I can even fix it.
botch something up
to mess something up; to do a bad job of something. You really botched this up. I did not botch up your project.
To make a mess of something because of mistakes or poor judgment: You've botched up that job and you'll have to start all over again. I won't try painting the chairs—I would just botch them up.