dirty vagina

What Christian girls can have, because they are not taught how to wash properly for the sake of maintaining taboos. See the words dirty and vagina if it's not clear enough to you.

There was an article featuring a doctor, who was giving threatening examples of neglected personal hygiene.

Gohan

Means "meal" in Japanese. Usually is used in connection with rice, so it's almost a synonym with it.

No example. It's also a first name, so please don't write that it's an insult.

Ruzek

Czech, meaning 'little horn'

It's not the size of your ruzek, it's how you use it.

kotoba

Means speech.

Some other variations include:
hanashikotoba - spoken word
kotobadzukai - expression

wow factor

A set of properties belonging to an object that pleasantly surprise a watcher. From commercials to cool electronics, the wow factor is an important thing to consider when designing it.

The IBM computers in middle 90's had a certain degree of the 'wow factor' to them. Sadly enough, their users weren't mostly able to recognize it.