Popcorn holders are typically tub-shaped containers that are used to hold popcorn while eating it. They are usually made of plastic or paper and come in a variety of sizes and shapes. The term 'TUBS' is often used to refer to these holders, as they are usually shaped like a tub. Popcorn holders are an essential part of the movie-going experience, as they allow people to enjoy their popcorn without making a mess.