in the southern US construction workers use this term to describe a knot that's not really a knot, just a jumbled twisted mess that seldom holds like it should. NOT A REAL KNOT !
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.