Design smelly is a way of describing something that does not look or feel good in a design. A lot of people think of design like a big art project, and it can be hard to tell if something looks good or bad. That's why people use design smells to help them figure out if something needs to be changed. Design smelly are things like large blocks of text, too much white space, or too many bright colors. They are usually easy to spot, and when you see them, it can help you think of better ways to make the design look better.