1. to eject the contents of the stomach through the mouth
Example : After seeing the gory film, I couldn't help but chuck in the toilet.
2. to pat or squeeze fondly or playfully, especially under the chin
Example : I chucked my puppy on the chin.
3. to throw carelessly
Example : I chucked the ball into the bucket.
4. to throw away
Example : The milk was going off, so I chucked it.
5. term for a meal
Example : I brought along enough chuck for three days on my camping trip.
6. the part of a forequarter from the neck to the ribs and including the shoulder blade
Example : I decided to use a steak from the chuck in my pot roast.
7. a holding device consisting of adjustable jaws that center a workpiece in a lathe or center a tool in a drill
Example : I put the drill bit into the chuck before tightening it.