What did the skeleton say to Shrek?
"Jump on me. I can have two layers of skin too."
Skeleton's Shrek Request
Explanation
Explain Bear
Listen up, numbskull! This joke is funny because skeletons don't have skin, right? But the joke is that Shrek has layers of skin - he's an Ogre - so the skeleton is pretending that he, too, can have layers of skin, by having Shrek jump on him! It's wordplay because you are dumb.