Oh good. My sister had a habit of making up phrases, so I wouldn't put it past my mother to have done the same.

Also, either my father or my grandfather, I forget which, used to wake people up by saying, "it's morning in the swamp!" I have no idea if that's a thing or not.

And, ah, bolthole makes sense when you put it that way. I kept thinking of bolts, as in nuts and bolts... and yeah... was confused. I really don't think I've ever heard it before, so that's cool! I learned a new word!