annachi
a word used by malus (malayalis) to describe the tamils which according to them are their brothers (since the tamils influenced the language quite a bit). the word it self in tamil means something like "elderly brother" and the orgin is from sanskrit

can be used in a good way and bad way depending on context
Malu: Namaskaram, nee malayali anno?
Tamil:(confused, speaking tamil)
Malu: (in their head, what an annachi )