Ever notice how mathematicians spend years mastering symbols that look like they were designed by a toddler having a seizure? From "integral that crushes a bee" to "spider caught with a cup and a playing card" - this is the secret language they don't teach you in school.
My favorite has to be the "confused alligator" symbol. Pretty sure that's exactly what my face looked like during calculus exams. And let's not forget "Z3 (cyclic group of order 3)" casually thrown in there like we're all supposed to know what that means. Spoiler: nobody does, not even most mathematicians.
Next time your math professor gets smug about notation, just ask them to point out the "hungry shark" symbol. Watching them panic is worth at least 3 extra credit points.