Someone who is unearthly talented in music and awesome at anything he attempts. Always physically fit. You can usually find Jaronamos in the southwest region of the United States. Always of some Mexican ethnicity, and black or brown hair. Referred to as "The Chosen One".
A person who, although extraordinarily talented, has no tolerance for anything happening of or about it's self. i.e. they cannot tolerate jokes, accidents, or another besting them in any way, shape or form.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.