You Can't Possibly Be Flying Edit Meaning

1.

A statement following the exclamation, "Oh My GOD!", that one is most likely to hear after throwing one's self at the ground and missing. See throw yourself at the ground and miss.

If you have thrown yourself at the ground and missed, it is vitally important that you do not believe the statement, "you can't possibly be flying", when you hear it. Otherwise, you will suddenly discover that it is true.