The act of texting only at a redlight by the person who is driving the car. Generally accepted as a safer way to text while driving because the driver is less likely to wreck, but they can still maintain communication with other people.
Mom: Kasey, put that phone away, don't you know you're not supposed to text while you're driving?!
Kasey: Mom, it's ok, I'm 18, haven't I at least earned the privilege of redlight texting? I'm not going to wreck.