When someone says "It will happen when hell freezes over", it means "It will never happen..."

Unless it does happen.
When people asked Don Henley whether the Eagles would get back together, Henley would always say "We'll get back together when hell freezes over." Little did they know 14 years later, they would get back together, and they immediately knew what to call their new live album.
by Fluthy February 23, 2020
Get the hell freezes over mug.
signifies that something will never, ever happen.
1: so when will the Bengals win the Super Bowl?
2: when hell freezes over, that's when.
by KRHimself November 30, 2004
Get the when hell freezes over mug.
forever(use caution with hell)
We will probably have to wait till hell freezes over to explore another galaxy.
by Light Joker December 21, 2004
Get the till hell freezes over mug.
Idiomatic expression used to describe an event or scenario that is so unlikely that it will likely never occur.
Q: Dude, I'm tired of the beach. Wanna go and ride that fake, plastic wave that they setup at Wal-Mart?
A: Yeah!
Q: Right on! Let's roll!
A: Hold on, I'd rather do that when hell freezes over. You stupid nincompoop.
by broceanographer July 20, 2006
Get the when hell freezes over mug.
another way of saying no to a person on something by exaggeration with it
"Rita, when are you going to give me a kiss?" asked Beta. Rita responds with "to the day hell freezes overwhile walking out the door of the room" leaving Beta depressed.
by jeffersonson October 17, 2019
Get the to the day hell freezes over mug.