Find out what the lines on Red Solo cups actually mean

Whether you’re enjoying a nice lemonade on a hot day, playing flip cup in your dorm room, or tailgating before a Lions game, you’ve probably had a run in with a Red Solo cup.

They’re simple, nice to hold, and easy to write your name on with a sharpie. But did you ever stop to wonder about the lines that create the iconic shape? Apparently, they’re not just for looks – they’ve got actual function! Thanks to Buzzfeed, we’re able to share what they mean… see the great image below!