when someone uses this phrase, usually a group of guys or friends, they are implying that either one of the individuals has gotten in with the opposite sex. Its basically a congratulatory phrase used when a friend has received some action. It is meant to be said out loud and obnoxiously so that surrounding individuals know that your boy has received some action from a female counterpart.
Shizzle : Yo bro, I heard Beyanseh gave you some action last night, is this true?
When you fail at something in life (eg. failing an exam or not getting a job), go home and spend an hour just standing in the shower, propping yourself up against the wall with your eyes on your feet.
Caleb knew the only thing to do after he didnt get prefect was take a failure shower.