I found this website called Jingai.com
that teaches Yakuza slang. I figured it would be fun, and since I haven't updated in a while, I decided to post some things I've learned. The information below is taken directly from Jingai- this is not mine. I'm just posting it here in case you guys are too lazy to click the link. Certain aspects of Japanese slang (such as dropping particles) are not just aspects of Yakuza slang, but slang in general, so I took them out.
( お前ら！クリックしてえ！Collapse )