Exclamation of disbelief or shock - "Oh my giddy aunt"

Who on earth was this giddy aunt?

"Sweet Fanny Adams", as in "It's worth sweet Fanny Adams"

I only figured out years later what the 'FA' of Fanny Adams should have been. Still not sure if Mum realises:-)

My Grandad had many but one I remember, when I turned out one day with hair parted in the middle, 60's 'mod' style. "Thi favvors a Staffudshur mon!' Translation - You favour (look like) a man from Staffordshire. Insult stemming from the days when Staffordshire miners were 'imported' to break a local strike. Funny thing is - Grandads family were from 'Staffudshur' :-)

Cheers

Dave