#1. The Anti-Harry (Potter), Potter's Arch-nemisis, enemy, rival.
Unless you consider that the position of Voldemort,
Draco is only the blonde rich brat who is jealous of Harry and tries to get him expelled from school.
Unless you don't want a canon definition,
He is a gorgeous, sexy, blond, evil, slytherin sex god who may or may not be Harry Potter's secret lover. This is by far my favorite.
"(Draco Malfoy) who at the present time had an arm around both Pansy Parkinson and Blaise Zabini, and who was smiling as if he'd just discovered Original Sin and was having great fun with it."
—Draco Malfoy the Amazing Bouncing Rat