A person who mindlessly causes frustration, inconvenience or loss to another while at the same time not suffering any loss themselves.
Thinking of an example would be so infuriating that my blood pressure would go up and I'd get myself in trouble. That's what it's like when you're the victim of a jewbox!
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.