a Donnie is a dark term derived from the term Donnie Darko, which can explain the actions of an individual whilst under the influence of dark ones (recreational drugs)
Donnie can also describe a person who is hiding hidden agendas.
For example, if louie harbors hidden dark agendas for an evening, he would be doing a Donnie...
Dan. Hey joel u going to math class?
Joel. "No man, i'm pulling a Donnie, and going to plough Hillary" ...
A large ogre type man with big clown shoes and a slow ass mod motor known a the king of stips. Can usually be found backflipping out of races he agreed to lock in on.
A short, old hobbit of a man who likes the thrill of the chase and has mastered the art of the hump and dump. Tells women he has fallen in love with them, before dumping them unceremoniously and giving it the old "it's not you, it's me."
"Wait, he dumped you and didn't even give you a reason?! What a total Donnie!"
The most fcking retarded dude on the planet, but has the biggest heart. Don’t get a donnie to fall in love because once he does nothing can get between them.