Malfoy is often associated to JK Rowling's Harry Potter books. In the book Malfoy is the last name corresponding to evil git Draco (who is incredibly sexy) as well as his father Lucius and mother Narcissa. Malfoy basically means bad faith. All in all google Malfoy and Draco will pop up...
Someone who exhibits qualities befitting of a Malfoy. For example, taking objects that do not belong to ones self, behaving obnoxiously. Malfoy can also be used as a name to call someone in a stressful situation.
ex: "omg give me my mints back, you're such a malfoy!"
A Bratty child. Usually with albino white hair . If this child ever went to a magical school... they would be put into one of the worst places to go! Were all bad children go! This child will be loved by girls all over the world one day.
A Malfoy is a person that constantly screws up at everything attemps, more than one screw-up is more than likely.
Also a synonym for screwing up in general.