Macduffed - To be shown up in a really bad way; To be made to look like

To be shown up in a really bad way; To be made to look like a total mess; To be proven wrong in the most obvious way.

I told my friend I could beat him at Fortnite. I got Macduffed in 2 minutes.

My sister said she could finish my homework in 5 minutes. She got Macduffed and took 2 hours.

I said I could eat an entire pizza by myself. I got Macduffed and only ate half before I dropped it.