For the uninitiated, here's a quick rundown. At any time and any place, one of your "bros" can present you with a Smirnoff Ice. The warmer and more disgusting flavor, the better. Then you have to take a knee and chug the offending swill. BUT...if you happen to have your own Smirnoff Ice on your person, then you can counter the "icing", and your "bro" has to take the knee and chug BOTH disgusting malt beverages.
I can't even begin to tell you how quickly I would de-friend a person if they ever tried to "ice" me. Or call me "bro". Thankfully, it looks like this particular viral drinking game is dying a quick death if you read that first link up there. I would have preferred that it went away before I ever heard about it. Because it just makes hate people even more than I already do.
But I think Daniel Tosh (who is brilliant, by the way) sums it all up best.
___________________________________________________Note: Remember to play the Badgerdaddy Trivia Challenge every day. Don't ice me, bro.