economatrix
When you are low on money and so have to do an eco round on CS (Counter Strike), its easier to hear economatrix than the standard Eco as its longer and the "ix" part is particularly easy to pick out even if others are going "hax! hax! that last round was bull!"
Dave: "Eco" (loads of background noise)
Everyone goes: "What?"
Paul: "Economatrix"
Everyone goes: "oh ok"