bungle
bun-gle
verb
To perform a task clumsily or incompetently, making a mess of it.
"They managed to bungle the entire operation."
noun
A clumsy or incompetent attempt or action, resulting in failure or a mess.
"The whole project was a complete bungle."
Thesaurus
Synonyms: blooper, boo-boo, bloomer, boner, botch, flub, blunder, foul-up, fuckup, pratfall, spoil, screw up