cock

1a : the adult male of the domestic chicken (Gallus gallus) : rooster

b : the male of birds other than the domestic chicken

c : woodcock

d archaic : the crowing of a cock also : cockcrow

e : weathercock

3a : a chief person : leader

b : a person of spirit and often of a certain swagger or arrogance

4a : the hammer in the lock of a firearm

b : the cocked position of the hammer

1a : to draw the hammer of (a firearm) back and set for firing also : to set (the trigger) for firing

b : to draw or bend back in preparation for throwing or hitting a quarterback cocking his arm cock a bat

c : to set (a mechanism, such as a camera shutter) for tripping (see trip entry 1 sense transitive 3)

2a : to set erect a dog with one ear cocked

b : to turn, tip, or tilt usually to one side cock one's head