chuck

from The American Heritage® Dictionary of the English Language, 5th Edition.

• transitive verb To pat or squeeze fondly or playfully, especially under the chin.
• transitive verb To throw or toss.
• transitive verb Informal To throw out; discard.
• transitive verb Informal To force out; eject.
• transitive verb Informal To give up; quit.
• noun An affectionate pat or squeeze under the chin.
• noun A throw, toss, or pitch.
• intransitive verb To make a clucking sound.
• noun A clucking sound.
• noun A cut of beef extending from the neck to the ribs and including the shoulder blade.
• noun A clamp that holds a tool or the material being worked in a machine such as a lathe.
• noun A clamping device for holding a drill bit.
• noun Informal Food.

from The Century Dictionary.

• noun A low guttural sound, like the call of a hen to her young.
• To make a low guttural sound, as hens and cocks and some other birds in calling their mates or young; cluck.
• To laugh with quiet satisfaction; chuckle.
• To call with chucking or clucking, as a hen her chicks.
• An utterance, generally repeated, used by a person to call chickens, pigs, or other animals, as when they are to be fed.
• noun A hen.
• noun A term of endearment.
• To fix in a lathe by means of a chuck.
• noun A local British name of the chack. See chack.
• To pat playfully; give a gentle or familiar blow to.
• To throw or impel, with a quick motion, a short distance; pitch: as, chuck the beggar a copper; he was chucked into the street.
• noun A gentle or playful blow or tap, as under the chin.
• noun A toss, as with the fingers: a short throw.
• noun In cricket, a ball thrown instead of bowled.
• In lawn-bowls, to strike (a counting ball) out of range, or to strike (a ball of one's own side) into a counting position.
• With full force; so as to hit; closely.
• noun The part of a beef-animal that lies between the neck and the shoulder-blade: used as a roast.
• noun A dialectal form of cheek.
• noun A woodchuck.
• noun A block; “a great chip,”
• noun A sea-shell.
• noun A pebble or small stone.
• noun plural In Scotland, a common game among children, in which five pebbles (or sometimes small shells) are thrown up and caught on the back of the hand, or one is thrown up, and before it is caught as it falls the others are picked up, or placed in ones, twos, threes, or fours. Sometimes called chuckies. See jackstone.
• noun In turnery, a block or other appendage to a lathe to fix the work for the purpose of turning it into any desired form.

from the GNU version of the Collaborative International Dictionary of English.

• transitive verb To call, as a hen her chickens.
• noun The chuck or call of a hen.
• noun A sudden, small noise.
• noun A word of endearment; -- corrupted from chick.
• intransitive verb To make a noise resembling that of a hen when she calls her chickens; to cluck.
• intransitive verb rare To chuckle; to laugh.
• transitive verb To strike gently; to give a gentle blow to.
• transitive verb colloq. To toss or throw smartly out of the hand; to pitch.
• transitive verb (Mech.) To place in a chuck, or hold by means of a chuck, as in turning; to bore or turn (a hole) in a revolving piece held in a chuck.
• noun A slight blow or pat under the chin.
• noun A short throw; a toss.