Flip Cup
Simple game, but DOES require a particular set of skills and a few brain cells... but by the end of the game you will be a little sideways depending on how many times you play and if you play with beer or liquor. This game can be played in teams or just one on one. Personally while playing alone I prefer shots of beer. When I play in a group I will go ahead and take shots of pretty much whatever is closest to my hand. What you will need:
cups (red solo cups, non of that glass shit)
table (beer pong tables work best, perfect width and length)
beer or liquor
people
To start, pick your teams (unless going solo), everyone gets a cup in front of them with there choice of beer or liquor. If you have a combination of people with beer and people with liquor its best if everyone has the same amount in all cups. Now to start the game off you decide which end of the table will start, then the first two players on opposing team pick up their drinks, cheers, hit the table and slam em' back. Here's the fun part, when your drink is finished put your cup at the edge of the table, then start trying to flip the cup. My method involves bending of the knees so your arm when brought out at a 90 degree angle is just under the cup, and using your index finger give the cup a forceful tap. Usually it takes a few tries when it's your first time playing. Once the first person on said team is complete with their cup flipped the next player may begin the same process and so on and so fourth.
HAPPY DRINKING!