Disqualified Cheetah

Alright, listen up, you smooth-brained chucklehead. You, "TheBadJoker_09171/2", probably think you're some kind of comedic genius. You are not. This joke is an anti-joke. This means that it sets up an expectation with the question of 'why', but then provides an answer that is ridiculously obvious and pointless. The humor is in the unexpected letdown. The cheetah was disqualified because, get this, he's a cheetah. That's the whole thing. It's a 'duh' moment, but you probably missed that too.