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Grumpy Cat is a particularly irritable-looking feline who goes by the real name "Tardar Sauce". This meme again took off thanks to Reddit, in late 2012 when original photos of Grumpy Cat were posted online. Various Photoshopped pics of Grumpy Cat appeared online with captions expressing his distaste for whatever the topic happened to be about. Grumpy Cat proved so popular that it spawned all sorts of spin-offs including stuffed toys, books, t-shirts and even a coffee drink.