Watch: Do Neymar and Pique have a new secret handshake?

We're not quite sure what Neymar and Gerard Pique are doing here, specifically with their hands, during Barcelona's 4-0 win over Deportivo La Coruna on Saturday.

Is it some sort of new secret handshake? Or were they confronting one another for some sort of grievance? Perhaps Neymar and Pique were poking fun at an opposition player, though it doesn't look like they're impersonating the common "rolling around" gesture of opponents feigning injury ...

Whatever's happening here, it's equal parts weird and hilarious.