Yaj-jihvagre nama tubhyam. Aho bata sva-paco 'to gariyan yaj-jihvagre nama tubhyam: "A person, whatever he may be, even he is very low born, but if he utters the holy name of God by his tongue, he becomes the glorious person." Sva-pacah atah. Sva-paca. Sva means dog, and pacah... Pacah means one who eats dogs. In India the dog-eaters are considered to be the lowest class of men, dog-eaters. So sva-pacah. sva-pacah means the dog-eaters. So even the dog-eaters, even if he is a dog-eater, it doesn't matter. If he can chant the holy name of Lord, then he becomes glorious. Aho bata sva-paco 'to gariyan yaj-jihvagre nama tubhyam. So this Hare Krsna chanting is glorious, and anyone who chants this, he becomes glorious.
Srila Prabhupada Lecture 66/05/30 New York, Bhagavad-gita 3.21-25