To do something successfully and effortlessly.

To spend a lot of cash, especially at a strip club.

TO LEAVE, it means to leave

reminding a person about a negative event, often a recent negative event. Works best when used in front of numerous people. The more painful the event, the better the ball out

To exude tremendous effort, to try extremely hard.

This refers to the governor on a steam engine. Two heavy balls are attached to the engine so that as engine speed increases, the centrifigal force of the flywheel causes the balls to rise. As the balls top out, they govern (limit) the engine, thereby controlling maximum engine speed. "Balls out," then, refers to running the engine at maximum speed.

Originally referred to the governor on old steam engines that had two ball that rotated across one another that would control speed depending on how fast they spun. Balls out meant going full speed or power.