Top definition
Off-brand cheerios that you find in the dining halls at your college. No matter what you put on them or in your cereal with them, they still taste like cardboard.
They didn't have anything good in the dining hall this morning, so I had to settle for Cardboardios.
by Dudewithaslug May 31, 2011
Get the mug
Get a Cardboardios mug for your buddy Yasemin.