Named for the wheel bombs of death from Battleship:The Movie. These bullshit bombs can drive themselves, cut through earth's technology like a hot knife through butter, can fly, can determine their own targets and even have a hidden whip whose sole purpose seems to be to destroy things they somehow missed. To qualify a weapon needs to be more than simply powerful, it needs to come across as something with so many cheap and absurd tricks as to be horrifically unfair to anyone unfortunate enough to have to fight against it.
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.