The Blue Grinch meme first appeared on the now-deleted Instagram handle of @blinch.feels. However, it was later reshared and reappeared again recently, gaining widespread attention.

The Grinch knee surgery meme Instagram/blinch.feels You might have seen an image of a blue-tinted, smiling Grinch with the caption, “That feeling when knee surgery is tomorrow.” ...

Specifically the Grinch saying he has knee surgery tomorrow. There are dozens of blinch (blue grinch) knee surgery meme accounts on Instagram. This is what your children are doing.” ...

The Grinch knee surgery meme is kind of a meta joke. It's the spiritual successor to the Instagram meme culture of 2018 that birthed The World Record Egg and same post every day accounts.