I'd also love if his is one of those situations where she's actually in another country (and doesn't speak English herself) but just really likes this cool tshirt she found online.

I used to love these on reddit. My favorite was a really sweet, dorky looking East-Asian guy wearing a sweater that said "I don't need life, I'm high on drugs".

I also was given a tshirt that it turns out just said variations of "get girls" all over it in Chinese script, and I wore it for years until a Taiwanese friend told me what it meant.