1. Smart board - a smart board is dumb because it is a board that takes up space and takes forever to turn on. It is a electronic device that people use to help `them do stuff.
2. Glue - Glue is dumb because it makes a mess and is sticky. It is a substance that helps keep things together.
3. Pen - Pens are dumb because they use to much ink. They are a hand held object that you use to right