Absolutely nothing at all, the most extreme degree of nothing.
Sol: No, it's a moissanite.
Bad Boy Lincoln: A what-a-nite?
Sol: A moissanite is an artificial diamond, Lincoln. It's Mickey Mouse, man. Spurious. Not genuine. And it's worth... Fuck all.
(From the movie "Snatch")
Nothing, absolutely nothing, just like how the Australien Government makes the ching-ching and yet you get absolutely zero. Ching-ching!
That's why we used your tax dollars to help them exploit an once-in-a-lifetime resource boom, privatise the profits, and pay no tax! Instead of setting up a sovereign fund like Norway to ensure health, education and pensions for future generations, whereas we're leaving you with approximately... fuck all!
British term used to define absolutely nothing.
You did Fuck all the last day, what do you expect?
This means when you fuck everyone at your school.
OMG I HEARD KING FUCK ALL'd BOONK GANG
When you are simply tired of hearing the masses babble on or tired with society and their pathetic ideals.
Amber: "Let's go grab a bite to eat and visit the Mall."
Chip: "Fuck all that, I'm out!"
Meaning 'absolutely nothing' in a slightly more vulgar way than usual ;)
-D'you know what I like about you? .... FUCK ALL. (from Green Wing)