The 3-beer challenge is a drinking game in which the contestants drink 3 beers as fast as they can. At the start of the competition, only 1 beer may be opened, and the first beer(wich is already opened) must be on the table. Whoever drinks their 3 beers the fastest wins.
The best part of this game is that after the challenge, everyone gets a good quick buzz afterwards, setting you up for a great night.
I don't even care that I lost to you in the 3-beer challenge, I still got a good buzz and it made your sister look even hotter.