Cool Guy Has Chill Day first appeared in 2007 as a bizarrely charming YouTube video featuring a man in a fixed-expression mask dancing joyfully through various locations to a catchy synth-pop beat. Created by animator Shmorky, the video quickly became a cult classic due to its unsettling yet strangely positive vibes. The meme is typically used to represent a state of blissful ignorance or genuine happiness in the face of chaos, or simply to show someone 'vibing' to their own rhythm. Its longevity stems from its perfect blend of early internet weirdness and relatable nonchalance.