If you don’t know who Grumpy Cat is by now, it’s about time you found out! Grumpy Cat, real name: Tardar Sauce, is a female feline with a funny permanent grumpy expression on her face due to her suffering from dwarfism. Grumpy cat first appeared on the website Reddit and everything went crazy from there! She is now an internet sensation, has her own website and even has a manager! See more post about Grumpy Cat here.