My giddy aunt

Posted by James Briggs on December 18, 2009 at 11:46

In Reply to: My giddy aunt posted by Dr R.W. Dyson on December 17, 2009 at 22:17:

: I'd always believed 'my giddy aunt' to be a 'minced oath' - 'my God Almighty'. Does anyone agree, or am I wrong about this?

Here's what I've found.
"Giddy", indicating "impulsive" or "scatterbrained", is apparently derived from Old English "gydig", which meant "mad, frenzied, possessed by God".