Seriously, Brain? This Is What You're Going With?

Last night I dreamed up another joke in my sleep, and it's a horrible one. Here we go:

What do you call a willing cannibal who also fights to the death for entertainment?
A gladiator (glad-I-ate-her).

In my defense, it's possible I've heard this joke somewhere and didn't actually make it up. One of the few times I'd rather be guilty of plagiarism.