Sizernino Share definition Flag A person that loves retro gaming, fast food, and doing a whole lot of nothing. Dude #1: That one guy from up north is fun to game with.Dude #2: He must be a Sizernino Sizernino by Sizer95deOlive June 11, 2024 0 0 Get merch Get the Sizernino mug. Buy Now — $32.95 See more merch
