once hell freezes over

Never; at no time. Sure, Bob, you can be the head of this company—once hell freezes over!

Name	Pronounced	Usage
BrÜNhild	BRUYN-hilt (German)	German, Germanic Mythology
Georgiana	[dʒɔ:dʒi'a:nə]
El	-	Near Eastern Mythology
Victor	VIK-tər (English), veek-TOR (French)	English, French, Portuguese, Romanian, Dutch, Swedish, Late Roman
Mckenzie	[mə'kenzi]
Ueli	-	German (Swiss)