botching
botch-ing
verb
Performing a task badly or clumsily, making a mess of it.
"He's botching the repair work again."
noun
The act of performing a task badly or making a complete mess.
"The botching of the cake was obvious."
Thesaurus
Synonyms: blooper, boo-boo, bloomer, boner, botch, flub, blunder, bungle, foul-up, fuckup, pratfall, spoil