Why didn't the skeleton cross the road? He had no balls to do it.
Skeleton's Lack of Courage
Explanation
Explain Bear
Listen up, dummy. This joke is about a skeleton that can't cross the road because it "has no balls". It's a play on words, see? Skeletons don't have balls because they're dead, and "no balls" means no courage. This kinda wordplay is too smart for you, huh?