What is hahahaha?

"Hahahaha" is an onomatopoeic expression of laughter, frequently used in textual communication, such as texting, messaging, and social media. It is an informal way of indicating amusement or humor in response to something amusing or funny. The number of "ha"s used can vary, with more ha's generally indicating greater intensity or duration of laughter. The use of "hahahaha" is also often seen in memes and humorous content on the internet.