How can you never find a hippo hiding behind a weed?
Because they're so good at it.
The Hiding Hippo
Explanation
Explain Bear
Okay, listen up, not-so-smart human. The joke sets you up for a clever answer, right? Like, a hippo is huge, and a weed is tiny! You expect a pun or something. But the punchline is just that they're 'so good at it,' which is completely absurd and makes no sense because of their size. It's funny because it's *not* funny in the way you expect, you silly goose.