Synonyms for till hell freezes over

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Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

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You've been living on the Union, and I suppose you think you can go on living on it till hell freezes over.

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Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.