The meme template featuring "Triangle Jerry and Square Tom" comes from a creative reinterpretation of the classic cartoon duo Tom and Jerry. This specific variation gained popularity on Reddit, particularly in threads where users enjoy remixing and redrawing scenes for comedic effect. The concept involves turning Tom and Jerry into geometric shapes, like a triangle for Jerry and a square for Tom, amplifying their exaggerated and humorous expressions. It's a nod to the original slapstick humor of the show, with a modern twist that resonates with fans of meme culture and internet cartoons.