Meaning:
an extreme example which is the biggest, most impressive, or most important of its kind.
Examples:
- You want to know what the mother of all bubbles was?
- And yet, here you are sitting on the mother of all secrets.
- JAKE: You want to know what the mother of all bubbles was?
- Then we have the war in Iraq—the mother of all evils.
- This was the mother of all bad ideas.
- With the mother of all yeast infections.
- Want the mother of all diversions, boys.
- I got the mother of all headaches.
- Let me state here that any harm to President Arafat would be the mother of all those mistakes.
- You know, the mother of all experiments, it's not airtight. It's not tight.