A phrase that is commonly used to end arguments. Once said there is nothing you can say to come back you just have to accept that you didn't say it first and repeat the phrase back to the person to acknowledge your loss. Can also be used as a sign of confusion or when being blamed for something usually said with a shrug of the shoulders and a wild look in your eyes.

Whenever making a congratulatory remark, this is what you say. Made popular by Kamala Harris when she and Joe Biden won the presidency.