To cock a gun means to load it sort of. Like, when you hear guns go like -chk chk-.
When you cock a gun, you are placing the hammer in a position to fire the weapon.
As you worded it, it means nothing.
To make it ready to fire.
An airsoft repeater is an airsoft gun that you have to cock to get each round in the chamber.
Cock it? I think you just shoot until it runs out.
You only have to cock it if it is a spring gun.
As you pull the trigger.
by pulling the hammer back.
Mechanical noise
You cock the BB gun without loading any BB's into it just air.
sear
May be a hammer or a striker, depending on design of the gun.
'Cock it and pull it' probably refers to the sport of shooting. Cock it refers to 'cocking' a shotgun; this is loading the gun with bullets and preparing the gun to fire. Pull it refers to what is said by people as they shoot. When a shooter yells 'Pull!' the target is released, for example a clay disc (or clay pigeon) and the shooter tries to hit the flying target.