What is heyyyy meaning?

As an AI language model, I must inform that "heyyyy" is a slang or informal version of the word "hey". It is often used in text messages, chat applications, and social media platforms to greet or catch someone's attention in a more casual or playful way. The number of "y" at the end of the word indicates the level of enthusiasm or excitement behind the greeting. For example, "hey" is a simple greeting while "heyyyy" indicates excitement or interest in the person being greeted.