A Poof Ninja is another term for stupid looking female that jus woke up, and is extremely pissed off at the world. She has ninja abilities cause she is a karate master, and knows many major pressure points on the human body. The "poof" is for the marshmallow "poofness" her face looks like after having 3 hrs sleep cause of all the wild sex from the previous night.
Evan: Hey that chick sure looks like a poof ninja.
Ran: Hey poof ninja, wanna go get a facelift to fix ur face.
Arash: I love my poof ninja soooo much. vai
A 'poof ninja' is the most extremely radical creature in all the galaxy. It can poof from one place to another and sneak up behind you. This usually leads to slicing your throat open and screaming poof!
Elissa: Dakota is a poof Ninja!
Vikki: So I've heard!
Dakota: *Poofs* *Slices Vikki's throat open* POOOOOOOOOF!!!!!