a direction to talk in team talk while playing an online simulation game. probably inspired by the navajo code talkers in europe during ww2 who defied the germans' best efforts to crack a "code" that was actually a real, totally complex language. (cf, the movie windtalkers)
hitler: hey wot r u up to?
churchill: have you ever heard of team talk?
degaulle: yeah it's time to push the navajo button.