Luis, well, he used to get most of his tertiary English "skills" from Howard Stern. Since he no longer has any access to Howard (we never did get Sirius) I can't for the life of me imagine where he is getting this sort of euphemistic language from. However, the "slit" perpetrator is in law enforcement... and who knows foul language like cops, firemen and enlisted men?
Foul language hardly bothers me and I use it as well - I would not incorporate the word "cunt" into my everyday English for the severity that others assign to it. I really try to be cautious of that. I use "fuck" a little too liberally but that really is in most people's daily-use lexicon. My area of specialty is Shakespearian language or middle English insults and innuendo.
The English language was much more flowery then, so to speak, so the terminology tended to paint a picture rahter than assign unknown words to parts. A few choice phrases/words:
Dearest bodily part
Hang one's bugle in an invisible baldric
Nest of spicery
Put a man in one's belly
Make the beast with two backs
Buried with her face upwards
Shake a man's hack
Change the cod's head for the salmon's tail
Make defeat of virginity
pluck a sweet
pick the lock
Assault between the sheets
Dart of love
Chuckle. Now, how many of those did you actually know? Go ahead. I know common use ones: beast with two backs, pizzle, dart of love, pick the lock, den, chaste treasure, pluck a sweet... those I know well. Some of the others are a bit more obscure. But don't kid yourself, in the 1500s everyone knew what you were referring to if you said, "I've been down a peculiar river today..."
Ah, the richness and fun that is the English language - or was. Now it is much too obvious and clearly derogatory. It has none of the fun and finesse that is so key to good lingual skills. And with me, English is not just a way of getting ideas across, it's an art form. I love words.
But it is a scary world that feels that we should practice Ebonics...