Dopey, the Chumpion of the World. A serial chump. Someone who aspires to imbecilic.
Best used when sung to the tune of womanizer:
I know what you are, what you are, baby
Chumpitizer, chump-chumpitizer, you're a chumpitizer
Oh, chumpitizer, oh you're a chumpitizer, baby
you you you are, you you you are
Chumpitizer, chumpitizer, chumpitizer (chumpitizer)