When Elon bought Twitter he changed the verification system which used to be for public personalities to be trusted into a paid tier. So suddenly you could have a blue check mark by your name just like Rhianna, AOC, or any of your other favorite celebs for $10/month. Tumblr responded by selling rainbow checkmarks to anyone for $2.50 and so a lot of people sarcastically bought and gifted them to other people to make fun of Twitter. Ultimately they're meaningless
for those of you who don't appreciate real culture, 'sayonara' means 'goodbye'
Just according to keikaku.
Hmmmmm. Cake