Julie How Could You circulates as a very short anime reaction sound, stripped down to a single line of disbelief that works without any surrounding dialogue. Its appeal comes from that simplicity: listeners instantly understand shock and betrayal from the tone alone, even if they do not recognise the original scene. Because the clip is under a second long, editors reuse it as a quick punchline for reveals, arguments and ironic betrayals across short-form videos, memes and anime compilations, where a longer quote would slow the joke down.