Interesting, San. I've just come across this Brummie site which has a lot that is also Black Country, including that one:
http://talklikeabrummieday.co.uk/I note these listed there which I'd overlooked:
outdoor (off licence),
pop (soft fizzy drink), "
looking like something nobody owns",
cob (bread roll), "
as fat as a chunky pig",
pumps (plimsolls),
guzgogs (gooseberries), "to have the bag on†someone e.g.
'e 'ad the bag on me, (to fool or trick somebody, make them the victim of a joke or hoax).
When I gave the talk, somebody asked me about
San Fairy Ann, meaning
don't worry about it. It's French,
Ça ne fait rien, "it doesn't matter". I presume it came in during WWI, but not specifically Midlands, I would guess.