A new online trend this summer is to get a bunch of friends together at a pool with a mini basketball hoop, and record yourself doing back-to-back alley oops while each person jumps in . . . then the last person who catches the ball dunks it.
Deadspin.com posted a Vine video of seven guys doing it. Then someone sent them a video of TEN guys doing it.
Here are both:
6 Man Alley Oop
10 Man Alley Oop