The Not Sure If Fry meme features the main character Philip J. Fry from the animated series Futurama. The image is a close-up still from the season two episode 'The Lesser of Two Evils,' where Fry squints his eyes in suspicion while looking at a robot version of himself. It gained massive popularity on Reddit and Tumblr around 2011, typically utilizing the 'Not sure if [X] or just [Y]' phrasal template. It has since become the universal internet shorthand for expressing skepticism, internal conflict, or the difficulty of distinguishing between two similar possibilities.