>>7669278That's a tough thing to ask, because for it to be absolute WORST Matoran insult you'd need to consider what would be the polar opposite their value system:
>unity -> chaos>duty -> selfishness>destiny -> pointlessnessTherefore, the closest thing to English would be a slur describing someone who does selfish, stupid shit for no other reason than just because they can...so "nigger" is probably a good equivalent actually.