The act of putting your bare asshole up to the water jets of a hot tub and allowing the jets to shoot up your ass. You will then have the shits for the next week. (If you did it right)
Kyle: Hey, dude, I got the shits!
Ted: Why man?
Kyle: I think it's 'cause I water packed last night.
Ted: Whoa man.
Kyle: Yeah.
Ted: Now I'm gonna go water packing.
Kyle: Awesome!
The act of putting your bare asshole up to a hot tub water jet so the water sprays into your crack and packs your shit. You will then have the shits for the next week, or day.
Ted: That felt amazing.
Walter: What?
Ted: I just water packed.
Walter: You went water packing?
Ted: Yes.
Waterparks is an American rock band formed in Houston, Texas in 2011. The group currently consists of lead vocalist and rhythm guitarist Awsten Knight, backing vocalist and lead guitarist Geoff Wigington, and drummer Otto Wood.