The phrase comes from everyday Spanish, where como estan muchachos is a casual way to ask a group of friends how they are doing. Online the wording is usually written phonetically as a como tan muchachos, dropping sounds the same way fast speech does. That written version became the searchable name as the short clip was reposted across soundboards, chat groups and short video edits. Its popularity rests on familiarity, because almost anyone who speaks Spanish understands the greeting instantly, even when the performance turns it into a joke.