What does di ou mesi means?

"Di ou mesi" is a Haitian Creole phrase that means "Say it or don't say it". It's a very direct way of saying, "If you have something to say, then say it. If not, then don't say anything."

It's often used in situations where someone is being hesitant or vague in their communication. It can be a way to encourage someone to be more direct, or to simply acknowledge that they don't need to say anything if they don't want to.