Expressive aphasia is a problem that some people have with speaking or using words. It's like when you know what you want to say, but you can't find the right words to say it.
Imagine you want to tell your mom that you're hungry and you want a cookie. You might say "me want cookie" or "cookie cookie cookie." Those are the right words to use to say what you want, but it's not the right way to say it.
People with expressive aphasia have a hard time using the right words or speaking in the right way. Sometimes they might even say words that don't make sense or words that are mixed up. This can make it very hard for them to communicate with other people.
Some people with expressive aphasia might also have a hard time writing or using sign language. It can be a really frustrating problem to have, but there are ways to help people with expressive aphasia communicate better.