The 'Pencil Music' meme, also known as 'Writing Fire,' features a hand frantically composing music or lyrics with a pencil that is literally smoking or catching fire from the speed of the work. It gained massive popularity as a visual shorthand for someone putting excessive effort into a creative project or delivering something of incredibly high quality. Originally circulating in music production communities to describe intense studio sessions, it has since evolved into a universal symbol for any situation where someone 'cooks' a masterpiece, whether it's a code snippet, a witty comeback, or an actual song.