According to White Nationalists, the (non-Aryan) word used by the ancient Aryans to refer to those who fell on the debit side of Vedic apartheid. According to Hindus, whites in general as an exterior, polluting, carnivorous caste.
"āra MLECCHA kahe, śuna — āmi ta' ei-mate
hinduke parihāsa kainu se dina ha-ite
jihvā kṛṣṇa-nāma kare, nā māne varjana
nā jāni, ki mantrauṣadhi jāne hindu-gaṇa"
"Another filthy meat-eater said, 'Sir, please hear me. Since the day I joked with some Hindus in this way, my tongue chants the Hare Kṛṣṇa hymn and cannot give it up. I do not know what mystic hymns and herbal potions these Hindus know.' "