Man chowder is a slang term used to refer to semenal fluids that you ejaculate into a woman's mouths and make her swollow. It is sometimes called this because of similar qualities to real chowder.
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.