Personnel Other than Grunts. A term used by
infantrymen to refer to non-infantrymen.
Also, there are varying degrees of POG. For example, someone in a straight-leg, or line unit, would consider us, in
LAR(Light Armored Reconnaissance), POGs. Infantry Riflemen, or 0311s, consider, Infantry Mortarmen (0341s) and Infantry
TOWgunners (0352s) POGs. I imagine
Force Recon considers everyone else POGs.
Mostly a way for
grunts, who have a reputation for being imbeciles, to feel superior and derisive towards non-infantrymen.
This has been my experience in the
Marine Corps, I can't speak for the
Army.