Q: What's the similarity between a dog and a bed?
A: I can jump on my bed. A: And I use a pillow on both of them.
Q: What's the similarity between a dog and a bed?
A: I can jump on my bed. A: And I use a pillow on both of them.
Listen up, buttercup! The joke is playing on the double meaning of "using" a dog and a bed. You can jump on a bed, and you can jump on a dog (though the dog might not be too happy about it, you simpleton!). And a pillow? Well, you use it on your bed, and maybe, just maybe, you let your dog use it too because you clearly don't have enough going on in your life.