== Parts of speech == 

 I've seen this claimed all over the internet, but "fuck" most definitely can't be used as nearly every part of speech.  It's a noun, a verb, and an interjection.  That's it. 

 No one says "this math problem is fuck difficult!"  they say it's "fucking difficult".  Just like any other verb, it has a particple in -ing. 

 And a [pronoun]?  Yes, I know you can use it to refer to people, but that just makes it a regular old noun.  Like "man" or "woman".  You can tell by the use of a determiner ("fuck *the* fucking fuckers"). 

 (While we're at it, I hardly see why that sentence is noteworthy.  It only uses the verb meaning and its morphological derivatives!  I can do that with any transitive verb: "eat the eating eaters", "punish the punishing punishers", etc.) 

 Down under "Modern usage", there's a different list: "verb, adverb, adjective, command, conjunction, exclamatory, noun and pronoun".  Command?  Um, you mean the [imperative mood] of English?  Conjunction?  Hardly!  Again  verb, noun, interjection, that's it.