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1.
A term used to predict the arrival time of a particular person or event when desiring to connote an extremely low probability of occurrence. Alternate spellings include never:thirty and never:30
Hey, what time do you think David is going to show up? Oh, I'd say about never-thirty.

by Cousin & Cuz August 15, 2007

Words related to never-thirty

late never tardy time unreliable