To be hit in face with a water polo ball so hard, the ball starts to curve the other way so it's touches (and crushes) ones face.
When the ball covers as much surface area of ones face as physically possible.
(girl watching her friends water polo game. Her friend's a goalie and blocked some pretty tough shots)
friend: Oh my gosh are you ok? That chick looked like she had a really strong arm!
Goalie: She did! She gave me a Water Polo Facial! but at least i stopped the ball. And its not my first tie getting a water polo facial.
A natural occurrence that takes place when clouds get unnecessarily thirsty. The clouds create their own "straw" and begin sucking up water from the nearest large body of water. It closely resembles a tornado.
Person 1: "Dude, is that a tornado over the ocean?"
Person 2: "No, its a Water Spout. The clouds are just thirsty"
A water buffalo is a very obese person on a team. Instead of running with everyone elese, he/she spends their time sitting on the sidelines drinking all of the team water.
Player 1: "Hey, look at Billy, hes just sitting there drinking all of the water"
Player 2: "Yeah, he is a water buffalo."