
Fall flat on your face
Colloquial Metaphor
Used informally to describe a big failure, not a literal fall.
He tried to joke during his speech, but he fell flat on his face.
Humorous Imagery
Sometimes used to add humor when talking about failures.
She fell flat on her face with that karaoke performance.
Public Events
Often used when a failure occurs in front of others, adding to embarrassment.
At the debate, his arguments fell flat on their face.