Rappers saying "Catch him in traffic" or "ill catch you in traffic" it means that while there going somewhere there going to catch them in traffic and kill them
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.