1. The act of giving someone a Bang sports drink.

2. The act of having sex.

3. Act of making noise

Something that is said to be extremely good.
Usually used for something that is elite or top tier.

As said before, a phrase used by emos/scenesters on sites like myspace...and also as a stated before it is accompanied by a crappy graphic of a gun, which is usually a pistol (more specifically a berettta 92-fs for some reason) or and m-16 or ak-47. These graphics will always have one or more of these characteristics:
-glitter
-blood or some other liquid dripping out of the barrel
-a rose protruding out of the barrel

A phrase, common in law enforcement circles, that means to call in sick to work.

When something/someone is extremely good/tasty/hot/sexy/etc., anything great

-to have sexual intercourse.

When coins (change) get stuck to your back when sleeping with your pants on, shorts on, extra. The change is in your pockets and falls out underneath your body (usually back) then gets stuck to your body and slowly falls off throughout the next day. Back change=bange