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!
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Look at how queer Screech looks here! He claimed on the Stern Show that he has a 10-inch schlong. Obviously he is lying:
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Another queer picture of Screech in a beauty contest: