Ross Smith's grandma is so hilarious your sides will hurts after watching her. The 90-year-old woman gets involved in all sorts of shenanigans that Ross puts her up to, and she obviously loves it. Not only are her beer pong skills ridiculous, but she's down to drink a Colt 45 or play the saxophone for you. She might even let you listen to her badass mixtape if you're lucky enough. Check out some of our favorite Instagram photos from the funny pair. We can only hope to be this cool as grandparents.