Axed
I axed you a question. Seriously. If that's the closest you can get to Ingrish, you might want to consider moving to another country. Did your mama not train you right? Did you not attend school for 12-17 years? I axed you a question... No, you just made an AX out of yourself.

Nigga
You can only say it if you are. I'm not. Never will be. Don't understand it. Don't want to understand it. Really, it's much too close to a word we all hate. Just let it go already. I have.

Vagina
How clinical can you make the most amazing place ever designed sound? Nuff said. It's not like the slang alternatives are any better, and it's not like you can say, "The place that shall not be named." How hot would that be in bed? "Oh, Oh, BABY! Your place that shall not be named is soooo goood". Yeah, that would turn on your partner about as much as a Black & Decker Blender on a rainy sunday morning.