The 'You Dense Motherfucker' meme originated from a webcomic by KC Green titled 'Gunshow,' featuring a character expressing extreme exasperation. The line quickly became a staple reaction image across forums like 4chan, Reddit, and Tumblr to mock individuals who miss obvious jokes, fail to understand basic logic, or display general obliviousness. While the original comic featured a specific hand-drawn art style, the phrase has been famously superimposed over various characters and celebrities—most notably a manipulated image of Benedict Cumberbatch as Sherlock—cementing its status as the internet’s ultimate response to peak denseness.