An abbreviation of the word "Attention". Most often used in message boards when one user is trying to get the attention of another user.

v. collectively or individually finding someone/something to blame for a problem, as opposed to brainstorming which connotes finding solutions to a problem

n. the act of finding someone/something to blame for a problem

(from a TV ad for HD television)

Air through the nose - An aim term used when someone says something thats funny but not enough to use "lol". When u just blow air out of your nose and smile.