How to Sign "Marine"
To sign *marine* (referring to the military branch), form a 'C' handshape with your dominant hand. Bring your hand to your neck, lightly grasping the front of your throat with your thumb on one side and your fingers on the other. Hold the handshape against your neck for a brief moment. This sign visually references the stiff leather collar historically worn by Marines, which is where the famous nickname 'leathernecks' comes from.