n.
Function: intransitive verb
Date: 1575
1 : STRUT , SWAGGER
2 : to turn, tip, or stick up
3 : to position the hammer of a firearm for firing
transitive verb
1 a : 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 cock ing his arm> < cock a bat> c : to set a mechanism (as a camera shutter) for tripping
2 a : to set erect <a dog with one ear cock ed > b : to turn, tip, or tilt usually to one side < cock one's head>
3 : to turn up (as a hat brim)
– cock a snook also cock snooks : to thumb one's nose < cocking a snook at the establishment>