The term 'No Chill' evolved from urban slang in the mid-2010s, describing someone who is acting irrational, reckless, or overly intense. It gained massive traction on Twitter and Instagram as a way to call out people for overreacting or having no 'cool.' As a meme, it is typically used to describe personal moments of anxiety, excitement, or savage honesty where social decorum is thrown out the window. Whether it's a screenshot of a heated text or a photo of someone looking stressed, the 'No Chill' label perfectly encapsulates the feeling of being 100% extra and refusing to play it cool.