A Donny is not something you can define, it is just something you are after passing the Donny trials.
Anti Donny: I am a Donny.
Me: You are not a Donny. You have not passed the Donny Trials yet.
Usually, kids named Donny are usually pussies. But, they have hot sisters and of course their mom is a MILF.
Friend 1: You going to Donnys?
Friend 2: Yeah im gonna dog Beth.
a strange fella to say the least. Not derogatory but slighlty insulting in an amusing way
person 1: Ayooo look at person 3, hes a strange donny haha
person 2: lmaoo yeah that dude is an odd one fr