Grumpy Old Geeks Products Rub Grub Product Rub Grub 2 mentions in 1 episode Rub Grub is described as a device that orders a cheese pizza after its user presses a button. Mentions 248: Side Hustle Feb 26, 2018 1:22:08 you push a button and it automatically orders a large cheese pizza 1:22:35 this is the debut of Rub Grub