Did you hear about the guy who was afraid of hurdles? He got over it.
Afraid of Hurdles
Explanation
Explain Bear
Listen up, buttercup. This joke is about a dude scared of hurdles. But guess what? He "got over it." Get it? It's like, he overcame his fear, but also, he literally jumped over the hurdle. You wouldn't get it, you're probably still trying to figure out how to tie your shoes.