Definition of "Chuck" :

noun: a holding device consisting of adjustable jaws that center a workpiece in a lathe or center a tool in a drill

noun: informal terms for a meal

noun: the part of a forequarter from the neck to the ribs and including the shoulder blade

verb: eject the contents of the stomach through the mouth

verb: pat or squeeze fondly or playfully, especially under the chin

verb: throw carelessly

"Chuck the ball."

verb: throw away

"Chuck these old notes."