Pizza Time comes from the snitch sketch on Key and Peele, the Comedy Central sketch series starring Keegan-Michael Key and Jordan Peele that ran from 2012 to 2015. In the sketch the phrase is treated like a dramatic signal, which made the exaggerated delivery easy to clip and reuse outside the episode. As soundboards and short form edits spread the line, it became a standalone reaction for any moment involving pizza, takeout or sudden food excitement, separate from the plot of the original sketch.