There is many a supposed-Tamil word / slang that is most amusing to hear and which I dare not use mostly because I don't really know their meanings.
The following swear words commonly used on Chennai roads especially by autorickshaw drivers, bus and automobile 'drivers' and cyclists: -
3. Saavukraki or Saavucracky
There are more on my list of Tamil words the meanings of which I don't know, but this list has been based on a gut feeling (!) that makes them seem safe to ask out in the open.
Going by the sounds only, my personal favourite is somari. Sounds so cute(!!) and crisp although yes, I do realise it is used to call someone a'bad name' like stupid or idiot. Porampohkku is also quite satisying when you swirl it around your mouth rolling the RRRs in true, dramatic Tamil style!Bemani sounds downright funny while Saavukraki I feel has something to do with a person who courts death ...or loves courting death.