When a person is really drunk, or just generally having a good time.
(Can also be used to describe a nice object or something as nice or cool)
Yooo, John is Hella Joof right now!
The feeling when your college dorm roommate shits in the shower drain, and you have to clean it up because he said it wasn't him.
Poopy-di scoop
Scoop-diddy-whoop
Whoop-di-scoop-di-poop
Poop-di-scoopty
Scoopty-whoop
Whoopity-scoop, whoop-poop
Poop-diddy, whoop-scoop
Poop, poop
Scoop-diddy-whoop
Whoop-diddy-scoop
Whoop-diddy-scoop, poop