Not much more to it than that: A character dispatches two enemies simultaneously by knocking their heads against each other. A common tactic of The Big Guy.
Roadblock did this a lot in G.I. Joe when combat got hand-to-hand.
A variation done by The Tick against the Idea Men: he smacked the head of one man in a line of them, causing them all to knock against each other like a clicking balls toy.
Five hats means that five tropers think it is ready to publish.
You are saying that you think this draft is ready to be published. That means the description is not ambiguous,
it doesn't duplicate an existing trope, there are at least three examples, and the title makes sense.
Is that what you meant to do?
You are saying this draft has a ready-to-publish hat it does not deserve and you are taking it back.