My nan used to say 'fanny fernakapan' too Flounder, & I think I've heard others say it too. When I left Brum for Uni I had a heck of a time up North with asking for 'baps' ("you mean buns pet"?).....no, buns have fruit in em!! Or 'cobs'. Its definitely 'pikelets' of course.
I tend to still use expressions like 'face on as long as Livery St' & 'round the Wrekin' even now up here (North East).....people used to think I was crackers........now they just know I am!!
Trouble I've found is that as I've picked up other expressions from around about on my travels, & I get funny looks when I go back to Brum & use a 'local expression' from up here without realising others wont have heard it!!!