Over-hand right to the forehead with a loose fist. Bad form, what?
https://www.bing.com/videos/search?q=roberto+duran+knock+outs&view=detail&mid=4198BAE41E7F3F4C890A4198BAE41E7F3F4C890
Hands of Stone.
https://refugeeresettlementwatch.org/2021/09/04/too-many-afghans-and-not-enough-welfare-for-them-and-everyone-else/