The term "imao" appears to be a typographical error or an informal way to express laughter in digital communication. It is likely intended to be "lmao," which stands for "laughing my ass off." This acronym is commonly used in texting and online chats to indicate that something is very funny, prompting laughter or amusement.
"LMAO" is an acronym that originated in online chat forums and text messaging in the early 2000s. It is a part of a larger lexicon of internet slang used to convey laughter and amusement among users in the digital space.