Diarrhea that creates a significant upward force on your rectum, propelling you off the toilet seat and into a whole new world. Learning to harness your power into controlled flying takes practice and shit. Afterwards you'll be quite pooped.
-Heard you were pretty sick last night.
-Yeah..it was pretty bad. I had jetpack diarrhea. One moment I was reading popsci, and the next I was stuck in the neighbors tree. It was pretty crappy.