Farm human countries, and made their citizen into meatballs. Basically cut, mash, and clump their human corpses into a meatball so it can be better transported. Like a fucked up dung beetle.
@dArkus_Orion I assume the translation isn't entirely accurate and that what she meant was that Slave Traders aren't her priority nor necessarily her biggest opponent. She's anticipating bigger threats and sees the Slave Traders as nothing more than pests that need to be purged or harvested, whichever is more convenient.