The 'I Ain't Reading All That' meme originated from a viral response to a massive wall of text, often associated with the dismissive follow-up 'Happy for u tho. Or sorry that happened.' It gained massive traction on TikTok as a sound, frequently used to mock people who send overly long messages or engage in 'yapping.' The meme perfectly encapsulates the modern internet's short attention span and the humorous refusal to engage with unnecessary information. It has since evolved into a versatile reaction used for everything from long work emails to unsolicited social media manifestos.