Refers to a cool, intellectual, popular, well-liked, needed, or otherwise important person. A person that's more important than regular people. Arrised from the word "yo" which resembles the word "joel," used to call important people who have been predefined as a joel.

Joel Rackley however is the nicest, sweetest, kindest ever human being on the earth. He'll stick up for you whenever.

When some little bitchboy is acting like a little tiny pee pee poo poo baby and messing up the group plans.