i'm a uni student from the uk and we don't have anything like that here. i guess the most similar would be our sports societies, but i don't think they match that well. i've heard the term 'frat boys' a lot, which i guess kind of match our rugby or football (soccer) boys. but again, they don't all live in a massive house together. my bf is also greek and whenever we watch american films or tv shows about uni, it only ever seems greek by name rather than culture. i don't mean to hate, im just genuinely curious. i've seen videos online of girls opening their sorority house letters and all crying and screaming. it all just seems surreal to me.