Slang word for knocking one out. Usually a term describing what action you’re going to apply to someone’s forehead if they continue talking nonsense. It’s deemed, usually, as a ‘Class A’ punch that will likely finish someone upon impact.
When after a hard night of drinking followed by physical exercise you proceed to vomit and shit yourself simultaneously while both of your legscramp. Often accompanied with excruciating pain
Josh: Where did Cal go?!
Nate: Oh he's dropping a jay bomb in the bathroom.