Baseball players have all sorts of celebration rituals/secret handshakes/inside jokes. We're going to guess this one, after David Ross' home run in Game 7 of the World Series, falls into the latter category (not to mention below the belt; NSFW language below):
— Trevor Sikkema (@TrevorSikkema) November 3, 2016
No, we have no idea what that means, either. Maybe an elaborate cup check?
Anyway, in important news, the Cubs are closing in on the franchise's first World Series title since 1908, when we're assuming cups were not a thing.