Various words and phrases I have adopted ironically over the years, that have mostly lost their ironic sense:

• Yeet (this is the big one. Whenever I throw something, or see someone else throw a thing, my brain goes “Yeet!”)
• Get rekt (gaming slang)
• Aura-farming (originally from anime, I think. It sort of means being very cool
• I gotcha fam
• Mate (this is an outlier because it’s not so much new slang, but it’s new to me. Your mind may default to an Australian accent when reading this, but the vibe is more “working class shit hole in Northern England” (in other words, home <3 ))
• Vibe (despite my use of this word never being ironic, it’s probably worth mentioning too, due to how often I use it. I use it so frequently that I’m puzzled about what I did before this word entered my lexicon)
• [Noun]-maxing (originally stems from “looks-maxing”, which means putting effort into looking very good. This isn’t a term I use frequently yet, but I’m trying to use it more, in order to annoy a friend. For example, when she took 3 bathroom breaks during movie night, I said that she was “piss-maxing”. I do love knowing someone well enough that you know how to cause them psychic damage. Ahh, friendship)

I felt like there were more when I started this list, but I can’t remember any now