Q: What did the sock say to the foot?
A: “Shoe!”

Explanation: Or did the sock say, “Shoo!”  “Shoo” means go away, scram, get out of here as in the song “Shoo Fly, Don’t Bother Me.”  Shoe, obviously, is what you put on your foot (after you put on your sock).  Was the sock pointing out that the shoe was coming closer?

This joke is silly and doesn’t make much sense but it does make me giggle.