that will be the day - something will probably never happen

What does that will be the day in Idioms_that stand for? This page is dedicated to explaining the various possible meanings of acronym, abbreviation, shorthand or slang term : that will be the day What does that will be the day in Idioms_that mean? Ever wondered what that will be the day means? Or any of the other 1,050,000 slang words, abbreviations and acronyms listed here at Sayitshort.com? Your resource for web acronyms, web abbreviations and netspeak.

What is that will be the day?
that will be the day is " something will probably never happen", under that-will-be-the-day
that will be the day Definition / that will be the day Means
The definition of that will be the day is " something will probably never happen"
The Meaning of that will be the day
that will be the day means " something will probably never happen"
Other definition of that will be the day?
We've found a total of 1 definitions for that will be the day that will be the day something will probably never happen in Idioms

What does that will be the day in Idioms_that stand for?