I have never seen The Witcher but here's some things I picked up from Tumblr:

- Henry Cavill is Geralt - Gerald, but fancy. He is a Witcher. Perhaps even The Witcher. He loves his horse a lot and one time he took a bath and nobody has recovered since

- There is also an awesome lady called Jenifer but with a Y. She's hot and I'm in love with her. I think she's a lesbian.

- There is also Jaskier which is confusing to me because there is a shop in my town called Jasiek. He's a bard and a tiny bastard and everyone loves him a lot

- I think there are three narratives happening at once but I have no idea what happens in any of them

- Geralt and Jaskier are in love

- Something about giving a penny to your Witcher??? I'm 100% unsure if this is a meme or an actual thing that happened in the show