Learn English Online - Idiomatic Expressions
Definition of Idiomatic Expressions

What does cold day in hell mean?
Meaning of idioms with examples...
cold day in hell
This idiom is used to mean that something will never happen.Idioms with similar meaning:
when pigs fly
until hell freezes over.
Example(s):
It'll be a cold day in hell before I accept his apologies.
This idiom is in the religion category