Which is correct "нахуй" or "на хуй"?

Question

I've seen many Russians write "на хуй" separately, or "нахуй" as one word, although I'm 99 % sure it should be written separately. Why is it so often written as one word? (Because the stress on на confuses them?) And is the spelling with a space the correct version?

Answer 1

Both spelling are correct since they stand for at least two different parts of speech.

As an adverb, нахуй should be written as one word like any other adverb in Russian.

It can mean totally, entirely.

Как ты заебала, заткни на́хуй свое ебало! (song by the band Evil Not Alone)

Or as a variant of нахуя meaning why?, what for?

На́хуй вы вообще приперлись? (trivial phrase)

Нахуя́ козе баян? (proverb)

A noun хуй preceded by the preposition на should invariably be written separately regardless of what sense it is used in.

In the literal sense (хуй = penis):

Мой парень надел на хуй стаканчик и стал им болтать, чтобы получить звук трещетки... (random quote from google)

In the positive metaphorical sense:

И рыбку съесть, и на́ хуй сесть. (proverb)

In negative metaphorical sense:

Иди на́ хуй! (very common idiom)

Also it may be used as interjection:

Я попью а, нахуй, всё, пиздец, не могу больше. (from the movie ‘Зеленый слоник’)

I tend to think it should be written as one word, but I can’t give any rationale now.

As for the causes for the solid misspelling, I don't think they have anything to do with the stress being on на. Stressed prepositions are still quite usual in Russian: лечь на́ пол, зайти за́ угол, взять работу на́ дом. It's most likely by analogy with directional adverbs such as направо, налево, вперед, etc. That would make a certain sense. However, на хуй in иди на хуй is considered as noun with preposition by the most competent people.

There's an empirical rule: if you can break a stable phrase up by sticking an adjective or some other form between its parts, then they're two separate words. You can definitely modify хуй with an adjective:

Иди ты на большой и толстый хуй!

You can even omit it:

Иди ты на большой и толстый! (really in use)

Try to describe право or лево in направо / налево and you'll see the difference.

All of the above is also applicable to numerous euphemisms of хуй: на́ фиг / на́фиг (нафига́), на́ хрен / на́хрен (нахрена́), на́ хер / на́хер (нахера́).

Answer 2

Следует улавливать тонкую грань в использовании вариантов «нахуй» и «на хуй». Существует наречие «нахуй». Оно имеет смысл «зачем»/«прочь». Также есть одноимённое междометие, которое используется просто в качестве связки слов в предложении. Надень шапку, нахуй, а то простудишься В отличие от наречия, «на хуй» надо понимать буквально. В любом случае, существует проверочное слово «в жопу». Если сомневаетесь, как грамотно написать деловое письмо, замените «на хуй» на «в жопу». Если смысл не изменился, то надо писать раздельно. А если «нахуй» можно безболезненно удалить из текста, то пишется слитно и выделяется, нахуй, запятыми.

http://lurkmore.to/%D0%9F%D0%9D%D0%A5

Answer 3

I decided to add my answer since I completely disagree with the accepted answer (Dmitry). The expression should be written separately — this is the grammatically correct form. If Dmitry could substantiate his answer, that would be interesting. The reference to the song can't be considered legitimate proof of the expression's correctness (and the song itself could be written incorrectly). I believe нахуй written as a single word is meant to be part of the "olbanskii ezyg".