Individually represented virtual soldiers, usually infantry, particularly those which are programmed to panic or rout under fire.
The term is presently restricted primarily to the Combat Mission community.
"Short of a blunder on the part the German commander, I've got no hope of taking the cemetery, so I'm just going to offer a cease-fire and dig in. There's no point in sending my remaining pixel-trupen to their deaths."
A "Pixelation" is an idiot online who won't shut the fuck up in a discord server (or other online group). And Frequently breaks rules and is hated by everybody. They're the type of person to make a grooming joke to a grooming victim and then complain they got banned.
Shut the fuck up you pixelation