Grumpy Cat F to pay respects meme - Grumpy Cat aka Tardar Sauce passed away on May 14, 2019.

Tardar Sauce aka Grumpy Cat passed away on Tuesday, May 14 at the age of seven due to complications from a recent urinary tract infection. Grumpy Cat became an internet sensation after pictures of her constant annoyed facial expression became the source of thousands of memes that became wildly popular at the end of 2012 and beyond. 

Here are some of the saddest, funniest, and most heartfelt memes and reactions to the most famous cat on the internet. R.I.P. Grumpy Cat, I hope you truly hate it up there. Check out Know Your Meme's Tribute at the bottom.