хуй

«хуй» is a highly vulgar Russian noun for the penis. Depending on tone and context, English equivalents include “dick,” “cock,” or “prick.” It is often used as an insult, in swearing, or in crude idioms.

• Register: extremely informal and offensive; avoid it in polite, professional, or unfamiliar company.
• Synonyms: пенис (neutral/medical: “penis”), член (informal to neutral: “member/penis”), хер (a somewhat softened vulgar alternative).
• Related slang: ни хуя (“not a damn thing” / “no fucking way,” depending on context), пошёл на хуй (“fuck off”), охуеть (a very vulgar expression of shock).
• Etymology/background: It is an old East Slavic vulgar term, attested in historical Russian usage. It has produced many common Russian profanity-based compounds and idioms.

Examples

1. Он сказал грубость и получил в ответ: «Пошёл на хуй».
   He said something rude and was told, “Fuck off.”
2. Да мне на это хуй, я не собираюсь спорить.
   I don’t give a fuck about that; I’m not going to argue.
3. Он ударился и закричал: «Ай, блядь, больно!»
   He hurt himself and shouted a vulgar exclamation; this illustrates the kind of coarse speech in which the word may occur.
4. В официальной речи такие слова лучше не использовать.
   It is better not to use words like this in formal speech.
5. Это слово может звучать шутливо среди близких друзей, но легко оскорбляет других.
   This word may sound joking among close friends, but it can easily offend others.