The 'Buff Cat' meme features a muscular stray cat from Montreal that went viral in 2018 after a Twitter user posted photos of the incredibly "swole" feline. Known for its imposing physique caused by a rare genetic condition called myostatin-related muscle hypertrophy, the cat quickly became an internet sensation under the nickname "Buff Cat." It is frequently used to represent strength, dominance, or intimidation in a humorous context. The meme often features captions about going to the gym, being an "absolute unit," or accidentally consuming protein powder, making it a staple in fitness and pet-related humor circles.