botcher β to spoil by poor work; bungle (often followed by up): He botched up the job thoroughly.
bumbler β to bungle or blunder awkwardly; muddle: He somehow bumbled through two years of college.
butcher β A butcher is a shopkeeper who cuts up and sells meat. Some butchers also kill animals for meat and make foods such as sausages and meat pies.
butterfingers β a person who drops things inadvertently or fails to catch things
clod β A clod of earth is a large lump of earth.
featherbrain β a foolish or giddy person; scatterbrain.
goof off β to blunder; make an error, misjudgment, etc.
mismanage β Manage (something) badly or wrongly.
muddler β a swizzle stick with an enlarged tip for stirring drinks, crushing fruit or sugar, etc.
screw up β a metal fastener having a tapered shank with a helical thread, and topped with a slotted head, driven into wood or the like by rotating, especially by means of a screwdriver.
bungler β A bungler is a person who often fails to do things properly because they make mistakes or are clumsy.
schlep β to carry; lug: to schlep an umbrella on a sunny day.
bull in a china shop β If you say that someone rushes into a situation like a bull in a china shop, you are critical of them because they do not stop to think, and are insensitive to other people's feelings.
clunker β If you describe a machine, especially a car, as a clunker, you mean that it is very old and almost falling apart.
foozle β act of foozling, especially a bad stroke in golf.
stumble β to strike the foot against something, as in walking or running, so as to stagger or fall; trip.
schlemiel β an awkward and unlucky person for whom things never turn out right.