Waddduyaknow Poem by Stanley Cooper

Waddduyaknow, Yea Gads, Holy Cow
Expressions used back then, but rarely now
Leapin Lizards, Let's Chew the Fat
People actually said things like that!

The Cats Meow, Straight From the Horses Mouth
Bet your bottom dollar, they've long gone south
Lock Stock and Barrel, Let's Tie the Knot
Still in use, but not a helluvalot

By the Seat Of Your Pants, On a Wing And a Prayer
Now only said by those who are square
Don't Bust My Chops, Dead As a Doornail
Another two that no longer prevail

On Pins and Needles, On Tenterhooks
On Shaky Ground, By Hook or Crooks
This wordy linguistic potpourri`
I wonder how it all came to be