What I mean is, if you asked someone to define the word they would give you a vague definition, along the lines of 'something offensive'. This very thread is proof of that, as many posters were unsure of it's exact meaning.
We are discussing letters that are not only offensive but, well, vulgar as well. The letter in the opening post takes rape, sex, sexual attraction, reproduction and loads them all into an insult. That does not happen multiple times a day, to say the least.
I can come up with plenty of examples for OOC vulgarity that is actual vulgarity as you are missing the explicit part. Offensive and happening have to sex things related to it does not make it vulgar. If vulgarity is IC, then that is not vulgar with definition of unbecoming of a noble because a noble would surely say that to an enemy noble they disgust.
