Never heard those. In Yorkshire it was "keep thi' sneck out" (not neck, and a sneck was a door catch I think). Dad always said "gone to see a man about a dog" which usually meant he was off to price a "fiddle job" up and didn't want us to say owt! When we asked where mum had vanished to (such a rare occasion, that, she was always there) he'd say she'd "run away wi' a black man" - lots of people said that, but no one does now! Adults were always "going to t'foot o'our stairs" and I have no idea why. Interesting reading all these memories.