Why not? They're made out of meat!

https://www.youtube.com/watch?v=7tScAyNaRdQ

The accepted term is "ugly bags of mostly water."

I've tried, but have been unable to do so. I think it's a limitation of my meatness.

Explanation: It's just that... you have all these squishy parts, master. And all that water! How the constant sloshing doesn't drive you mad, I have no idea.