Actually, this reminds me. See the second fella in black there looking off up to the left on the picture. He's clapping his hands in a way I've noticed only rugby players do when they parade into the dressing room after a match. Oafs hit BOTH palms off each other rather than hitting one palm with the backs of the fingers of your other hand like normal people.
I think it's seen as a more manly way to clap by oaf ballers. I don't know if this is a thing but I think we all need to be vigilant here and set our rogbish warning systems for it. I'm sure it's probably because Napolean or some other great general clapped that way.