A Burris Greeting is very similar to the "Burris wave" its the act of flipping a friend off as a joke or for fun when the teacher is not looking. Not meant to be a mean gesture. Can be used when a student makes a stupid comment or makes a joke about you and you don't have time for a comeback.
student 1: (knocks student 2's stuff)
student 2: why did you do that?!
student 1: your mom forgot to pay me
student 2: ,,|,, (or Burris greeting)
Text: ,,|,, or ,,|,, (*_*) ,,|,,