GET D!RTYNext time you're traveling or just chattin' in Japanese 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 Japanese" teaches the casual expressions heard every day on the streets of Japan: What's up?Ossu? How's it hanging?Choshi doyo? I'm smashed.Beron beron ni nattekita. I love ginormous tits.Kyo'nyu daiskui. Wanna try a threesome?Yatte miyo ka sanpi? I gotta take a leak.Shonben shite. He's such an asshole.Aitsu wa kanji warui kara.