I. ˈchək verb
Etymology: Middle English chukken, of imitative origin
Date: 14th century
: cluck
II. noun
Etymology: perhaps from chuck chicken
Date: 1595
— used as an endearment
III. transitive verb
Etymology: origin unknown
Date: 15th century
1. : pat , tap
2.
a. : toss , throw
b. : discard
chuck ed his old shirt
chuck it out with the trash
c. : dismiss , oust — used especially with out
was chuck ed out of office
3. : give up
chuck ed his job
IV. noun
Date: 1611
1. : a pat or nudge under the chin
2. : an abrupt movement or toss
V. noun
Etymology: English dialect chuck lump
Date: 1723
1. : a cut of beef that includes most of the neck, the parts about the shoulder blade, and those about the first three ribs — see beef illustration
2. chiefly West : food
3. : an attachment for holding a workpiece or tool in a machine (as a drill or lathe)