Noun, Vulgar slang.A Russian obscene word “ÑÑÐ±Ð¾Ðº” which means “retarded fucker”. There are plenty of synonyms for this particular term,
but “ÑÑÐ±Ð¾Ðº” is one of the most offensive. Use it in casual dialogue, and you’ll be punched in the face almost for sure.
American and uyobok? That’s two strikes right there.