botch1 /bɒtʃ $ bɑːtʃ/ (
also botch up)
verb [transitive] informal to do something badly, because you have been careless or because you do not have the skill to do it properly:
The builders really botched up our patio. a botched investigation [TahlilGaran] Dictionary of Contemporary English ▲
botch up v. phr. To ruin, spoil, or mess something up.
"I botched up my chemistry exam," Tim said, with a resigned sigh. [TahlilGaran] English Idioms Dictionary ▲