botch

noun

A piece of work or a task that has been performed badly.

"The whole project was a complete botch."

verb

To perform a task clumsily or badly, making a mess of it.

"He managed to botch the simple repair."

Thesaurus

Synonyms: blooper, boo-boo, bloomer, boner, flub, blunder, bungle, foul-up, fuckup, pratfall, spoil, screw up