THROW THE BABY OUT WITH THE BATH WATER
I threw the baby out with the bath water when I did my spring cleaning and accidently discarded my car keys.
When shredding documents, john threw the baby out with the bath water when he accidently destroyef his birth certificate.
They cancelled the entire project because the new management didn't like the prototype, but I think they threw the baby out with the bathwater.
MEANING:
If you get rid of useful things when discarding inessential things, you throw the baby out with the bath water.
used to suggest an avoidable error in which something good is eliminated when trying to get rid of something bad,[2] or in other words, rejecting the essential along with the inessential.
To discard, especially inadvertently, something valuable while in the process of removing or rejecting something unwanted.
ETYMOLOGY:
From a German proverb that dates to 1512.
OVER THE MOON
Tom was over the moon when he got accepted to his first choice school.
David was over the moon when he got promoted at his office.
Mr Jefferson was over the moon when he found out he was about to have a second child.
MEANING:
Very happy or delighted
ETYMOLOGY:
This phrase has been part of the language for more than a century. It has become more widely used in the past twenty or thirty years.
Comes from a 16th century nursery rhyme the went:
Hey diddle diddle,
The Cat and the Fiddle,
The Cow jump'd over the Moon,
The little dog laugh'd to see such Craft,
And the Dish ran away with the Spoon.
ON ONE'S LAST LEGS
David's car was on its last legs so he had to take it to a mechanic.
Tom's TV was on its last legs so he had to go get a new one.
The Titanic was on its last legs until it sunk.
MEANING:
About to die.
(by extension) About to lose viability or become defunct.
ETYMOLOGY:
Legs are needed to support many structures, such as animals or furniture.
The more legs one loses, the less supported that structure is.
So, to be on one's last legs means that one is about to lose viability, become defunct, or even die.