The principal of McGavock High School as well as the source of various memes from sexual to intellectual. These crafty dank gifs and edits keep the spirit going in what would be a dull, lifeless, education environment.
"Why are you laughing?"
"Mr. Wall"
a "Mr. Wall" when someone does a long speech after someone has already wasted 30 minutes of your life by doing a speech.
person 1: thank god bobs done talking
person 2: oh no Franks gonna do a "Mr. Wall"
person 1 & 2: shit