One who goes to the bathroom and doesn't wipe their butt. Thus leaving dookie on their butt. Therefore they are a dookiebutt.

Anatidaephobia is defined as a pervasive, irrational fear that one is being watched by a duck. The anatidaephobic individual fears that no matter where they are or what they are doing, a duck watches.

Anatidaephobia is derived from the Greek word "anatidae", meaning ducks, geese or swans and "phobos" meaning fear.

When after a long night of partying you go to the bathroom the next morning and your butt explodes into the toilet causing nasty toilet water to come splash your underside... That my friend is dookie butt...

Any girl that you can, want, or need to fuck. It does not matter what occasion; whether that be your girlfriend, friend, or just some bitch you met at the club. No matter what, you can not judge someone's dookie butt. As the saying goes, "dookie butt is dookie butt".