“Stick” or “y-stick” is one of the most recent passing concepts to have gone totally viral such that basically every passing team uses it — it’s only about twenty to twenty-five years old. Everyone has their spin on the play, but basically it is a quick, three-step route play, where the offense puts the flat defender in a bind by sending one receiver to the flat while another hooks up or “sticks it” at five to six yards. Below is a good video showing the concept and showing an example of the Houston Cougars running it.
Note that it looks like Tulane is in man coverage, though it is the defensive end who drops off to cover the running back. In any event, stick also serves as a very good zone beater, as well being a great, quick zone play.