I still don't :(
Memes
With the capitalization, I'm thinking the NBs' names are "Tooth" and "Nail." I think it’s a joke about NBs picking non-gendered preferred names.
I searched for a better explanation than this but I'm pretty sure you're right and the joke is just kind of a stretch
It's certainly not a good joke.
TIL non-binary people name themselves after school bullies from PG-rated movies from the 1990s.
I think we each have to take a minute. Their minute doesn’t count for us.
… I took a few minutes and still don't get it. In my defense I'm stupid and on top of that my native language isn't English, and puns often just don't click for me
I am a native English speaker and I don't get it either. I googled 'what are teeth and nails made of' to try and give myself a clue and got this delightful generative bullshit response:
"Fighting tooth and nail" is a phrase meaning you're in a desperate struggle, using everything available to you. By capitalizing it, it also turns tooth and nail into people with non-gendered names. That's all there is to it, it's just a pun.