its not meant as an abuse.... mallus call themselves mallus..does that mean they are abusing themselves??.. people make fun of sardars and there are so many jokes about them..is that an abuse?? just take it in good humour..
and i agree lungis are not worn just by mallus or south indians..they are worn widely in north india also.. its just a term that you associate with a keralite..lungis and coconuts..i dont think there is anything wrong or shameful in that...!!
take out your frustration somewhere else people..not on QL.. tear a newspaper into tiny pieces..that will help.. :P and please smile :)