Knife Cat, also known as Smug Cat with a knife, is a legendary reaction image featuring a white cat with a mischievous expression being held at bay by a kitchen knife. The original feline image, known as Smug Cat, first appeared on Tumblr in 2014, but the photoshopped version with the knife became a viral sensation on platforms like 4chan and Reddit shortly after. The meme perfectly captures the essence of chaotic energy and mock defiance, making it a favorite for situations where someone feels unbothered by a threat or is playfully 'dangerous.' Its enduring popularity lies in the juxtaposition of a cute domestic pet and a sharp object, symbolizing a state of hilarious, low-stakes confrontation.