Consider the honorable rikshawman. He says LKB with so much spashtam that you want to stop and admire the raagam and bhaavam with which the word was said. He says 'L' (pauses) 'K' (pauses) and 'B'. The pause he puts are apparently for grammatical precision and is a key indicator that he is a puristic. Nobody else says it this way. An english-educated person can never be so eloquent. A college-going engineer is not necessarily this precise and classic. He often says it quickly with no respect to the 'kalachaaram' of the word. That is because a college student picks up this word because he is required to. Otherwise his social skills are brought into question. The rickshaw-kaaran, on the other hand, uses this because he needs to. Very similar to why silk-smitha had to show 'kavarchi' because the story demanded it. However, has the rickshaw-kaaran paused to wonder about the expletive he just ejected into the outside world. What business does a rickshaw-man bred and steeped in thamizhnes have with a indhi word. isn't it a 'vada mozhi sol'? All he ended up saying was - pubic hair
Really! How offensive is that? All he ended up saying was that the other person was a curly hair that will rarely get shaved, oiled, or combed. Sort of like the hair on T.Rajendar's or Thyagarajan's head. So what? Where is the offense here? Who would be offended at being curly, unoiled, and un-combed. How is this word different from 'left monidal shoulder clavicle' (LMSC). All it needs for LMSC to be a swear word is silly 'vilambaram'. Advertisement that it is a "bad word". It need not have an offensive meaning at all. It need not mandatorily have any meaning at all. It should just be a group of words. What makes it a horrible swear word is a simple recognition that a person shouting LMSC is intending to offend. This is all the recipient of LMSC needs to know in order to be offended. The meaning of LMSC is immaterial. If its widely regarded as a swear word, people will use it all situations ranging from fights to mafia wars to office meetings (in order to appear casual and informal).
On the subject, have you wondered why all swear words are creatively limited to just sex. The most commonly used phrase by human beings is "What The 'act-of-having-sex'". It is often abbreviated as WTF for added effect. Humans say "oh! act-of-having-sex! I forgot my pencil box". Otherwise they say "The movie was act-of-having-sex awesome". They agree with other humans by saying "the-act-of-having-sex yeah!". Somehow the 'act-of-having-sex' has become an easily leverageable word. It can be used as a swear word by calling someone a "person who indulges in acts-of-having-sex". Or can be used to appreciate with "you are the-act-of-having-sex (add_gerund) good".
The offensiveness of a word can only be increased in a specific dimension. It is by pulling relatives in the mix. Sisters, mother, father, source of birth is the general direction in which the swearer progresses in order to increasingly offend the swearee. The closeness of the relative is directly proportional to the severity of the insult. Look at this situation (audio not safe for work) where the swearer insists, quite strongly and repeatedly, that a particular gentleman's reproductive organ is in reality a property of the gentleman's sibling. Which is why I think swear words will never be popular in the simian world. Or for example: I am pretty sure if Hyenas began to speak they would not be offended by these swear words at all. They would probably use words like "person who never had sex" "celibate" or "person who only marries once" to offend their fellow hyenas.
I suspect swear words will decline and become extinct among humans as well. How long can the same set of worlds continue to be cool? In a hundred years when it has penetrated into daily vocabulary and is used in contexts like "Do you 'person-who-has-sex' take Elizabeth as your 'act-of-having-sex' wife" the words will loose its sheen and probably will be discarded for more creative insults. I wonder what those insults might be though. Probably the generation gap will not allow me to appreciate the beauty of it.