Being up, or getting mixed up, in business or information that has no relationship to you whatsoever. Being up in the mix where you DON'T belong. Prying into the affairs and business of others.

someone who curiously pry into other people's affairs or business.

overly inquisitive or curious, prying

(ADJ)someone who cares too much about people he doesn't care about. going out of one's way to find out information about people, places, or things that in no way shape or form pertain to anything he/she cares about or will ever accomplish

Certain classmates that like to read what other people are doing. They don't know how the hell to mind their own business and therefore think that EVERYTHING is their business. Get a life. Really. No one cares. Get over yourself and stop causing or trying to cause drama. Stay out of other peoples' business, because it isn't yours.

game played by children in which a group of people call "nosies" and the group sticks there finger on their nose as fast as they can and the last person to do so loses and has to do a chore for the group

A person that has a big nose at all