Definition:
This is a corruption of the original proverb: the proof of the pudding is in the eating.
Usage:
The corrupted version has come to be used like so:
I guess the proof will be in the pudding on that.
Explanation:
Literally, the original phrase means that you won’t know whether food has been prepared correctly until you taste it. Metaphorically, it means something like "seeing is believing" or "don't believe things without proof."
