The 'Menacing' meme, characterized by the purple floating katakana 'ゴゴゴゴ' (gogogogo), originates from the manga and anime series JoJo's Bizarre Adventure. These characters represent a rumbling sound effect used to indicate a tense, threatening, or overwhelming presence. The internet adopted this visual shorthand to elevate ordinary situations—like a cat staring or a person walking into a room—into high-stakes cinematic confrontations. It is often paired with the 'Oh? You're Approaching Me?' scene, serving as the ultimate tool for portraying 'big boss energy' or impending doom in a humorous, stylized way.