I know boats
When you think you're the smartest person in the room, only to get completely roasted when you're shown to be wrong, like you just got hit by a truck.
I said I knew the answer to the question. Then the teacher said 'Nope,' and I was completely wrong. I felt like I got hit by a bus.
I told my friend I knew how to fix the car. Then I broke it even more. I was like 'What?'
I said I knew how to cook. Then the food was inedible. It was like I had thrown a bunch of garbage in the oven.