Another expression of "it's so fucking cold" in Korean is "더럽게 춥다" 더럽다 means dirty 더럽게 can also be pronounced "드럽게". That is not a standard word though, we use "드럽다" a lot in colloquial speech. I don't know why we say "더럽게 춥다". This expression is not polite either. But we don't say "더럽게 덥다" when it's so hot ^^;;

- It's so fucking cold => 추워 죽겠다. - I'm going to die => 이러다 나 죽겠다 / 나 죽을 거 같아. - I need warm blankets, fuzzy socks, hot chocolate and Netflix => 따뜻한 블랭킷, 털양말, 핫쵸코하고 넷플릭스가 있어야 돼.

Another translation of "it's so fucking cold" would be "존나 춥다~" 존나 can be replaced by 졸라 and tons of other variants. **Warning: This phrase is NOT polite. :)