If you don't live in a cave in the depths of the Amazon rainforest, and you have an internet connection, as slow as it may be, you've probably heard about the new hit Netflix film, 'Birdbox'. In this horror thriller, the characters must evolve in the world blindfolded, because those who dared to open their eyes are dead.This video has absolutely nothing to do with the movie, except that the two young men wearing boxing gloves are also blindfolded. For that reason, Sport Bible media to make the best joke of the year, by renaming this video 'Bird Box-ing'. We can only applaud their writing talent and congratulate the author of this excellent pun.You can see two 'boxers' trying to exchange a few punches despite the blindfold obstructing their view. Simple, dangerous, silly, these are the characteristics of this blind boxing. Check out the video above to see this crazy sport in action!