My wife have been discussing the phrase: “Fuck you, you fucking fuck.” The subject, verb and object are obvious, and I’m of the opinion that everything behind the comma is an adjectival phrase. What say you all? Yes, this is a serious question.
I concur. "you fucking fuck’ modifies the object (which happens to be ‘you’).
.
Is the final fuck a verb? As in, you fuck in a fucking manner? Or is it a noun, and “you” is a fuck, which is fucking?
No, it’s a noun phrase, indicating who is addressed. It functions the same way in these sentences, where there’s no “you” to modify:
- Get lost, you fucking fuck.
- Fuck your grandmother, you fucking fuck.
- Fuck yourself, you fucking fuck.
Note that the subject is unstated and implicit, as is normal in English sentences with the verb in the imperative mood.
No, I think it’s a noun here – I think the verb “fuck” is normally a transitive verb, and there’s no object if it’s a verb.
What would it be for, “Get lost, you fucking suck.”?
There “suck” is much more likely to be a verb.
That would be an incorrect sentence. 
(Assuming “suck” is not a noun, since I’ve never seen it used as such.)
“Get lost. You fucking suck.” Is OK.
“Get lost; you fucking suck.” Is even better. I’ve always been in favor of exploiting the noble semicolon within profane abuse.
I would say that “you fucking fuck” is an appositional phrase consisting of just a subject (“fucking fuck”, in which “fuck” is a noun modified by “fucking”), emphasised by the appositional pronoun “you”. Similar to “you despicable nincompoop”.
Meanwhile, I don’t see that the subject of the first part is obvious. It seems to be a sentence in which the subject is implied. Something like “may <the situation in general> fuck you.”
Ah, so the following would be an adjective (or adverb) phrase?: “Fuck you, grammatical Nazi.”
Although it seems the ‘you’ is implied in that.
Shouldn’t it be
Fuck yourself, you fucking fuck.
?
with a prodrop of the You?
(You) Fuck yourself, you fucking fuck.
That makes the first fuck a verb.
er…or is fuck you like curse you? (You be cursed?)
No, because you can’t use “fuck you, grammatical Nazi” in the places that you would use an adjective. That is what “adjectival phrase” means - a phrase that you use like an adjective.
I sometimes find it helps to translate a sentence into Latin and back again in order to analyze its grammar. “Fuck you, you fucking fuck” > Futue te, O fututio futuens > “Copulate [with] yourself, O [ye] copulating act of copulation.” Everything after the comma (in any of the three sentences) is a vocative phrase, which is a type of noun phrase.
So the first section is a verbal phrase?
Color me properly confused.
It looks like verb phrase + adjective + noun.
Although I’m not convinced that saying “you” after a verb when indicating you should do an action to yourself is proper.
I wouldn’t say, “Go take you a bath.”
I can say, “(You) Go take a bath.”
So it should be (You go) Fuck yourself, you fucking fuck.
or maybe I’m wrong. But it sounds right! 
In some parts of the country, that’s not only acceptable, but normal. 
fuck you is a curse.
in this case, like ‘damn you’. fuck in both uses are conceptual, but it still is a command. no?
it HAS to be **(You) Fuck yourself, you fucking fuck.
**
so fuck you is [imperative verb tense that i still think needs -r+self to act as an indirect obj] with (you) being a subject and yourself answering the question “who”?]
OR it’s (I) curse you
the latter seems more appropriate. fucking expletives.
SO:
Fuck you means (i am cursing) you, so “fuck” is sitting in for a *present continuous *verb and you is a direct object (answering to whom?)
making this
you fucking fuck =
you (pronoun, first person singular) + the gerund fucking as an adj + fuck, with “fuck” no. 2 substituting as the object.
I think.
yous is crazy
fuck.
okay, the last part can’t be correct, because ‘fucking fuck’ isn’t a gerund phrase. it’s an adj. used to indicate a degree of measurement…or stupidity…or awfulness.
sorry. it’s a present participle phrase.
