Next time you're traveling or just chattin' in Korean with your friends, drop the textbook formality and bust out with expressions they never teach you in school, including:
-Cool slang
-Funny insults
-Explicit sex terms
-Raw swear words
Dirty Korean teaches the casual expressions heard every day on the streets of Korea:
-What's up? Wasseo?
-Holy shit, I'm trashed. Ssibal, na manchiwi.
-I gotta piss. Na swi ssayahae.
-Who farted? Bangu nuga ggyeosseo?
-Wanna try doggy-style? Dwichigi haeboja?
-That bitch is crazy! Heo nyeon michin nyeoniya!
-I could really go for some Korean BBQ. Na cheolpangui meokgospieo.