Yang Ik-Joon's debut "Breathless" (똥파리) is memorable for many reasons, one of them being how often the main character (played by Yang) uses the worst Korean curse word, roughly pronounced "shibal"
(씨발) and often added to other swear words to make "shibaloma" (씨발놈아) or "shibalsekki" (씨발새끼). Here's a compilation of (nearly) all of the times the word is used in the film. Now go buy the DVD.