A type of check in lacrosse in which you check the stick out of the hand in a downward motion, as if slamming the stick to the ground. Also used at frat parties in order to check beer out of peoples' hands because they do not have their beer in the "box".
"Death check! Keep your beer in the box, narps!"
Reference to a check received from a recently deceased relative that was loaded and has happened to have left most of their money to one individual.
Have you gotten your death checks in the mail yet? Your uncle must've had it made.