I use it occasionally. I think that many Brits do, although it's far more common in London.
Just off the top of me barnet, these are the one's that I use fairly frequently:
Up the apples and pears.
Nice Bristols.
I write a Gregory.
Off for a couple of Britney's.
He's a bit ginger.
Hello me old china.
That's about it for me. I can understand most of the other ones, although I don't use them at all.
Anyone use any others?
Englishman.