what you say when you hear of douchebaggery, just before turning round and seeing the fucker could stomp yer arse into the dust. the line is usually delivered drunkenly and without knowing that the fucker will be seven foot and sexually frustrated

A mother (including mother in lesbian and gay relationship) fucker. Someone who fucks a mother.

Another way to add sex to innocent things without saying "that's what she said."

in (word ending in "er) her, i hardly know her, "Her" is the same person as "She" in that's what she said. It's a hypothetical girl that you have sex with.

When someone says a word ending in "er" you turn it into a sex joke.

So if a friend says, "Dude, I broke your windsheild wiper."
You say, "Wipe her? I hardly know her!"

A big, goofy headed, penis loving fuck.

Also the name of a significantly small penis.

Stupid, racist, chicken fucker.

Someone that is soo homophobic that they are afraid of their own penis.

the most annoying fucker ever

N. meaning Fake Ass Mother Fucker

or

V. (when used with GA) a process, where by disrespecting someone in a certain way using very specific steps, is used to call someone out on their being a Fake Ass Mother Fucker.
Similiar to the "you're stuck wtih it" game, but more covert and fun. Also used competitivly to trick friends.

Steps to complete a (GA)FAMF:
1) Hone in on your target.

2) Say something to the target that catches them off guard and makes them say, "What?"
(Helpful Hint: A good trick is to mumble something semi-incoherent to them while they're in another conversation, or spout a fast string of non-related words in the form of a question. The idea is to be as creative as you can.)

3) Wait for the target to say, "What?"
(READ: Only the word "What?" works. If they say something like "huh?", or ignore you, you have failed your mission.)

4) Quickly shout "GA FAMF!"
(The GA stands for "Gotcha!". If you yell FAMF without the GA, it doesn't ...

"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.