"咪咪股" (mīmī gǔ) isn't a formal finance term — it's a Chinese internet wordplay/joke. The pun: "Meme stock" is normally translated as 迷因股 (mí yīn gǔ) in Chinese. 咪咪 (mīmī) sounds vaguely similar to "meme," but it's actually Chinese slang for "boobs/tits" (originally a cutesy word, like the sound of a cat meowing, that became slang for breasts). People swap 迷因 for 咪咪 as a joke because of the sound similarity — so "meme stock" becomes "boob stock." The joke itself: It's mocking the same phenomenon as GameStop/AMC-style meme stocks — stocks that pump purely on social media hype and community mania with no real fundamentals behind them. Calling it "咪咪股" plays on both the absurdity of that pump-and-dump behavior and the crude double meaning of the word — something like "a stock that inflates and deflates for no real reason, just like..." (you get it).