The 3 dollar-per-quart version of the essence of life. This is justified by running tap water through a filter and slapping "liquid hydration formula" on the label of the bottles.
When you hold your nut in for a prolonged amount of time and squeeze your penis to the point where the head of your cock is blown off, soaring through the air.
Jerry: Bro, how did that hole in the wall happen?
Tim: Dude, I was bottlerocketing real good last night.
Jerry: Damn bro, how long have you been that nut in??
Tim: Years bro...