Maybe we can call it "B2" sauce

Time for another British grocery item.
This week it's London Pub Steak & Chop Sauce.
It's in a square bottle which is shaped just like an A-1 bottle.
It tastes pretty similar to A-1 too.
It'd be good on a burger, or stirred into some sauteed mushrooms, or even as a dip for french fries.
I heartily approve.

What I want to know, though, is this:
If I was to sail/swim/fly over to London, and find my way into a real London pub, would there be bottles of this stuff on the tables there? Would they know what I was talking about if I asked for it? Would they look at me funny if I dipped my french fries into it?
(Would it be better if I called them "chips" instead of french fries?)

I started wondering why there's no American equivalent. Oh, sure, we have all kinds of steak sauces, but none named after a specific type of eating establishment in a specific place. Then I realized... Would YOU buy a sauce called "Skanky Detroit Bar" or "Chicago Hole-In-The-Wall" or "New Jersey Roadside Place Which Almost (but not quite) Got Shut Down By The State Safety Inspector Again"?

Worse yet, just imagine the sauce that might emerge from a place like this:


It all makes sense now.
.