Look at this picture of Slater, Zack, Screech, and Mr. Belding. It almost appears as though Belding whipped out his schlong and the Bayside students are staring at it!
Look at how queer Screech looks here! He claimed on the Stern Show that he has a 10-inch schlong. Obviously he is lying:
Another queer picture of Screech in a beauty contest: