"Fuck" is perhaps the most versatile and most-used word in the English language. It can relate anger, surprise, dismay, joy, and a variety of other emotions. It is also quite commonly used as a word of emphasis or description, often with comical effect. For some good examples, refer to "English as a Second Fucking Language," by Sterling Johnson, which can be found on Amazon.com. Also check out comic Dane Cook's take on the word.

Also, on a rather interesting note, I read somewhere that fucking once described an act in which a person who sowed/planted seeds in a field, and those particular people were referred to as fuckers.

NOTE:

The guy who quoted Monty Python had it wrong. I believe the quoted text is attributed to George Carlin.
Why don't you go play hide-and-go-fuck-yourself?

I don't mean to tell you how to do your job, but GO FUCK YOURSELF!

Fine, I'm sorry, I'm sorry, UN-fuck you!

Cartman: Don't call me fat, you fucking Jew!
Mr. Garrison: Eric, did you just say the F-word?
Cartman: Jew?
Kyle: No, he's talking about "fuck." You can't say "fuck" in school, you fucking fat-ass!
Cartman: Why the fuck not?
Mr. Garrison: Eric!
Stan: Dude, you just said "fuck" again!
Mr. Garrison: Stanley!
Kenny: Fuck!
Mr. Garrison: Kenny!
Cartman: What's the big deal? It doesn't hurt anybody. Fuck-fuckety-fuck-fuck-fuck.
Mr. Garrison: How would you like to go see the school counselor?
Cartman: How would you like to suck my balls?
Mr. Garrison: What did you say?
Cartman: I'm sorry, I'm sorry. Actually, what I said was... (picks up a megaphone) HOW WOULD YOU LIKE TO SUCK MY BALLS?
Stan: Holy shit, dude.
-from South Park: Bigger, Longer, and Uncut-
by LordOfTheCynics December 10, 2006

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug
An extremely flexible, magic word that exists in nearly every part of speech. It can be used as a noun, verb, adjective, and adverb.
Noun: I don't give a fuck about politics!

Verb: I want to fuck Jessica Alba more than my hand.

Adjective: Shit! That sky is fuckin' blue!

Adverb: President Obama just fuckin' signed a new jobs bill.

All the above: You fuckin' fucked my fuckin' girlfriend, you backstabbing fuck!!!
by rogerthewhale December 04, 2011

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug
fuck:
AKA: the F word.
or to have sex, and/or a way to express anger.
i want you to fuck me hard.

Fuck YOU!!
by An Angel xD September 01, 2005

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug
Verb
Inflected forms: fucked, fuck·ing, fucks
Verb
tr. 1. To have sexual intercourse with. 2. To take advantage of, betray, or cheat; victimize. 3. Used in the imperative as a signal of angry dismissal.
Verb
intr. 1. To engage in sexual intercourse. 2. To act wastefully or foolishly. 3. To interfere; meddle. Often used with with

Noun
1. An act of sexual intercourse. 2. A partner in sexual intercourse. 3. A despised person. 4. Used as an intensive: What the fuck did you do that for?
Interjection
Used to express extreme displeasure.
Phrasal verbs
fuck off 1. Used in the imperative as a signal of angry dismissal. 2. To spend time idly. 3. To masturbate.fuck over To treat unfairly; take advantage of. fuck up 1. To make a mistake; bungle something. 2. To act carelessly, foolishly, or incorrectly. 3. To cause to be intoxicated.
Etymology
Middle English, attested in pseudo-Latin fuccant, (they) fuck, deciphered from gxddbov.
Word history
The obscenity fuck is a very old word and has been considered shocking from the first, though it is seen in print much more often now than in the past. Its first known occurrence, in code because of its unacceptability, is in a poem composed in a mixture of Latin and English sometime before 1500. The poem, which satirizes the Carmelite friars of Cambridge, England, takes its title, "Flen flyys," from the first words of its opening line, "Flen, flyys, and freris," that is, "fleas, flies, and friars." The line that contains fuck reads "Non sunt in coeli, quia gxddbov xxkxzt pg ifmk." The Latin words "Non sunt in coeli, quia," mean "they the friars are not in heaven, since." The code "gxddbov xxkxzt pg ifmk" is easily broken by simply substituting the preceding letter in the alphabet, keeping in mind differences in the alphabet and in spelling between then and now: i was then used for both i and j; v was used for both u and v; and vv was used for w. This yields "fvccant a fake Latin form vvivys of heli." The whole thus reads in translation: "They are not in heaven because they fuck wives of Ely a town near Cambridge."
by matt the great June 20, 2005

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug
Fuck is a very versatile word and can be a noun, verb, adjective, prefix, and suffix all in one word!

Etymology: There are many theories to the origin of "fuck". Some say it was first described in a poem in English and Latin code about people who will not go to heaven because they "fuck wives of Ely", but there are many other theories too, too many to list them all. The word "fuck" was probably first popularized in the 1928 novel Lady Chatterley's Lover, where the word "fuck" was used numerous times. In 1938, a song called Old Man Mose gained notoriety for saying "fuck" in it as well.

The phrase "fuck you" was first mentioned, however, in The Catcher in The Rye by J.D. Salinger.

As a verb, it mostly means to engage in sexual intercourse with the subject, or to destroy/mess up something.

As a noun, it usually means a person disliked by the speaker.

As an adjective (e.g. fucked) it means something destroyed or messed up.

As a prefix or suffix, it is used to create compound swears or insults. Examples are below.

Sometimes, however, it is just thrown around into sentences, proving its decrease in vulgarity among the years.

The more you abuse the word "fuck", the bigger your penis is. It's a proven fact.
verb: I fucked your mom last night, but on the way out of her room I fucked up the doormat.

noun: George is a stupid fuck.

Adjective: I went on 4chan last night and I saw a really fucked up picture of a dick on there!

Prefix: You fuckhead!

Suffix: Kevin is a douchefuck.

Filler: Today I went to the store and I was like, holy fuck, they had a sale on fucking chocolate bars! I mean, fuck, I bought like, 5 chocolate bars for 1 dollar! Holy fucking shit!
by Fucking Fuckfucker July 11, 2009

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug
......................... /´¯/)
......................,/¯ ..//
...................../... ./ /
............./´¯/'...'/´¯ ¯`·¸
........../'/.../..../... ..../¨¯\
........('(...´(..´...... ,~/'...')
.........\............... ..\/..../
..........''...\......... . _.·´
............\............ ..(
..............\.......... ...\
fuck you,you fucking fuck(middle finger)
by qwerrrt November 04, 2007

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug
the ultimate word, can be used however many times in a sentence and will still be understood. Replaces any word. adds importance. sounds cool in names
person highly angered: fucking fuck fuck fuck fuck fuck!
if you see this incident and saw what had happened this is an appropriate outburst.

oh shit = fuck
any adjective = fuck

person: he had a green shirt, it was cool
person 2: his green shirt was fucking cool

names:
Mikey Fucking Way
Oprah Fucking Winfrey
50 Fucking Cent

see sounds so much better
by slipintotragedy June 10, 2009

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug
acronym meaning Fornication Under Carnal Knowledge.
I bet you didnt know what fuck stood for.
by Cap'n Crunk April 07, 2005

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug