Now Absalom happened to meet the servants of David. For Absalom was riding on his mule, and the mule went under the thick branches of a great oak. And his head caught fast in the oak, so he was left hanging between heaven and earth, while the mule that was under him kept going (2 Samuel 18:9 NASB)
I had a friend ask me where I come up with these titles. I’m not sure. I suppose when I imagine a guy riding a mule going under a tree, getting his head stuck in the tree, and the mule continuing on, leaving the man hanging from the tree; I’m likely to suspect his head was too big. The irony of the term applied to Absalom also makes it very attractive, almost as attractive as he thought he was. See, it just works so well on too many levels.