The mathematical dad joke we never knew we needed! This meme brilliantly plays with mathematical notation by flipping the square root symbol (√) upside down to create the "reverse square root." Instead of finding what number, when squared, gives you x, this imaginary operation asks what number, when "reverse-rooted," gives you x. It's basically squaring a number but with extra steps and a ridiculous symbol. Mathematicians everywhere are simultaneously groaning and forwarding this to their colleagues. Next up in mathematical comedy: the sideways cube root that only works on Tuesdays.