Old Fart （くそったれ じじ）

He Says:
kusottare jijii　（くそったれ　じじ）=you shitting old goat!
jijii means old guy like more than 70years old. and kusottare is fucking shit(see the one Dec.14 blog). So you can say this word to old men, but can say to young men. That'll be more powerful insult.
And that'll be so nice if a female uses the word to men.
You can say it to your fucking shit boss or someone.
I bet many japanese don't expect you non-jp people can use this word,
so they would be so surprised when you say this word.
jijii is old man,and old lady is babaa.
So kusottare babaa is also cool to say to them!

She Says:
Mmmmm....I don't have anything to add about this one.

Oh Shit! （やべ）

He Says:
yabe　（やべ）=oh shit!, in big trouble
Many japanese people use yabe in many situations. When we get up late, we say "yabe!!", when we send email to a wrong person, we say "yabe!!".
Yabai is the original word for that, yabe is more casual way.
And you can say yaba too. All are the same meaning.
Hiro in the TV show of Hero used to say yabai many times when he gets in big trouble(I think he uses the word even though he didn't get in big trouble).
Like Hiro,many japanese use yabai!(or yabe,yaba) when it's not a big trouble.
That's ok. It's kind of common in Japan.
You can say,"yabe!! I farted!" or something.

She Says:
It's fun to make a big deal out of something. But to be honest, if you use it in the exaggerating way, Japanese people will probably laugh at you because they think that you're using the language wrong. This isn't necessarily a bad thing though.
See, in America if somebody makes fun of your English and they're laughing at you, it's a bit malicious and they think you're stupid. We expect foreigners to speak perfect English, with no accent.
Japanese people, on the other hand, tend to think that Japanese is the hardest language that ever existed and it would be completely impossible for a foreigner to ever learn to speak properly. So when they laugh at you, it's because it's just so cute that you're trying and make such a silly little mistake.

The next word is...（くそったれ　じじ）。

Meow （おめこ）

He Says:
omeko　（おめこ）=pussy
Japanese girls hardly say the word of omeko,nor in private. They feel embarrassed to say the word.
So in many japanese porn video, the jp pornstar guy try to make the girl say "omeko" or something. Then the girl hesitates so much to say the word.
That's the one of great ecstasy for jp guys. Can you understand their ecstasy taste?
Many pervert jp guys love to see or feel what girls don't want to do.
So they order their girl or hooker to say "insert yours to my omeko",or
"give your cum on my face".
They want to hear such words from girls who don't want to say.

She Says:
If you're a guy, knowing this word probably isn't gonna get you any brownie points. However, it's very good to know if you're a girl who's into Japanese guys. ;-)

The next word is...やべ。

Hooray for Sluts! （やりまん）

He Says:
yariman　（やりまん）=slut
yariman is dirtier word than sirigaru we introduced last time.
As you know,sirigatu means slut,the original meaning is the girls who turn their butts to men for sex(siri=butt,garu=light).
But this time the word of yariman shows the stuff more obviously.
"Yari" means having sex,"man" means a pussy.So it's more direct,and dirtier.

She Says:
This is an interesting one because, in my experience, you can masculinize it and guys will be surprised and insulted if you call them that.
As He mentioned, the "man" (pronounced "mahn") in "yariman" comes from "manko" which means pussy. The word for dick is "chinko". So you can create the word "yarichin", which would mean male-slut. If you're a girl, try calling a guy who's trying to pick you up this and watch his face. So funny!

The next word is...おめこ。

A Light Butt（しりがる）

He Says:
sirigaru　（しりがる）=slut
Usually slut means for women, so Japanese say sirigaru onna(girl) too.
You can use both sirigaru and sirigaru onna.
Both are the same.
The original meaning of sirigaru is light butt(siri=butt,garu=light).
So the word was made by the girls who can turn their butts to men easily for sex.

She Says:
This made me giggle when I saw it because I thought that they were using "garu" as "girl" which is a common thing to do. So I thought it was "butt-girl". Unfortunately it's not...but that might be a way to help you remember the word!

The next word is...やりまん。