I have a really good joke.
Do you want to hear it?
Oh wait, this is a bad joke website.
A Really Good One
Explanation
Explain Bear
Listen up, buttercup. This "joke" is meta because it's about the joke itself. The author is basically saying the joke is too good for a site known for bad jokes. It's like bringing a gourmet burger to a dumpster fire, which you probably would do, genius.