An action, job, or task that has been performed very badly; a ruined, defective, or clumsy piece of work.
A tumour or other malignant swelling.
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"
To perform (a task) in an unacceptable or incompetent manner; to make a mess of something