botches
bot-ches
verb
Performs a task clumsily or spoils something through incompetence or carelessness.
"He always botches the simple repairs."
noun
Clumsy or poorly executed repairs or tasks; mistakes made due to incompetence.
"The project was full of botches."
Thesaurus
Synonyms: blooper, boo-boo, bloomer, boner, flub, blunder, bungle, foul-up, fuckup, pratfall, spoil, screw up