Nonsense. We’ll have nothing to do with this namby-pamby American tosh. We’ve woken each other up with a good caning for centuries, and that’s damned well how it’s going to stay!
(Oh, and generally it’d be “Want me to knock for you?”, which unfortunetly is a bit less risque).
Work avoidance here, but some colloquialisms that I grew up with…that may sound unusual to you…
Out of those, Misscegnist, i’ve only heard of slag, which has the same meaning here, and bogan, but that’s only because i’ve seen Neighbours (I think it’s your equivalent of a chav? Maybe?).
not quite - to me bogan is a young, male “petrolhead”, normally driving a cheaply imported rice rocket (recklessly). They like to gather and race, and also commonly garishly modify the car, many with stupidly loud and impractical stereos…
Isn’t chav, more the equivlent of a wannabe gangster?
I don’t know where Messcegnist lives, but I’ve never heard of any of those except slag (which I first heard in this thread) and BB, which may or may not be the same BB Misscegnist is talking about.
As someone who used to live in Wellington, I’ve certainly heard of JAFA.
Amazingly (from Brit lit I’ve read), “cock” seems to mean the same thing on both sides of the pond. IOW, “chicken” ain’t gonna be the first thing that enters your mind.
“Prick,” OTOH . . .
Ok a full translation is probably in order…
A few more to consider
and one more for cultural differentiation…
What we call a hotdog is a battered saveloy (often a stick) that is deep fried…
The other sort, that includes a frankfurter, relish, mustard onion and cheese would be properly referred to as an American Hotdog.
To us, that round ball sport played by Beckham is soccer, Gridiron may be referred to as either Gridiron or American Football, footie is Rugby.
Finally, hearing about the “World Series” in baseball always cracks us up (I do now understand the etymology though, thanks to the Master)
And the Brits still use “tread” as a verb. We would’ve forgotten that usage entirely by now, if not for that old rattlesnake flag from the Revolution.
And of course, we Yanks are completely baffled by Cockney rhyming slang . . . although that doesn’t really count as British English . . . nor as any kind of English . . . nor as a slang . . . nor as a human language . . .
what about “cock sure”?
I would normally refer to a “cock” (the animal kind) as a rooster, but if anybody were to tell me they had bought three cocks I would understand immediately what they meant, but if it was a pretty lady, would probably use the opportunity to crack a witty double entedre.
I need a break from all this talk about trans Atlantic confusions.
I’m going outside to roll a fag. 
Bush pig? Around here, a bush hog is a very large mower attached to the back of a farm tractor.
In the factory where I worked, a chippie was a chip handler, the guy who collected metal shavings in the tool room. We joked that one of our chip handlers was a Native American, a “Chippie-wa.”
A “slag-bagger” in these parts is a charlatan, a flim-flammer.
AKA - in Australia - as thongs. “Jandals” was one of the more noteable New Zealandisms that I recall from my time there. Also “chilly bins” and “section” to refer to the land on which a house is built. We use “block” here.
Ah - the good old 1/4 Acre!
Huh - you mean chilly bin is not universal? I woulda’ thought that “Esky” was more of a colloqualism, with “chilly bin” being the proper name.
Another Australianism that made its way to NZ was “going bush”
Then of course we can talk about things like
Possibly it is universal. I don’t know. I’d certainly never heard it until I went to live in New Zealand.
I don’t believe this is specifically a British meaning. I’ve heard people here in the US use it in that way, too. Hell, I’ve used it in that way.
One of our favorite commercials as kids were the ones for Brain’s Faggots.
A good mate always wondered why we burst out laughing when he mentioned his favorite dessert from school, spotted dick.
Lucky I never took up smoking, 'cos I totally call 'em fags. Force of habit. I also heard a lot of people talking about being fagged out after exercising, so hearing that phrase now makes me giggle a bit.
I’m sure there are others… gotta think for a minute…
Oh, I have one. Whenever I mention that I grew up in England to an American, inevitably I’m asked if I lived near London. (No.) I usually answer, “East Anglia and the Midlands,” and leave it at that. Some well-versed clever dicks have responded, "Oh, wonderful! I spent a summer in SUF-FOLK and visited Oxford-SHIRE. It’s always been pronounced “Suffuk” and “Oxford-shur” in my experience.
Place names are always fun. Here in New England they tend to sound much like their British ancestors, but toss a Cirencester out and watch the sparks fly! (People in Oxon called it Cissiter, but I understand locals call it Ciren-cester.)
Confusion between terms
UK:
‘Faggot’ = a kind of meatball, or a bundle of sticks
‘Fag’ = a cigarette.
The two are not interchangeable in these contexts, at all, but are often confused (US: conflated) by furriners.