whole other thing(redirected from whole 'nother thing)
whole other thing
Something very different to, and often more difficult or complicated than, something else. Often spoken or written more colloquially as "whole 'nother thing." I don't know what you think you know from working in television, but working on a film is a whole other thing! It's one thing to babysit your friends' kids from time to time, but having your own children is a whole 'nother thing.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
whole nother thing
Rur. a completely different matter. (Often "corrected" to a whole other thing. The word nother is a shortening of another.) Borrowing! That's a whole nother thing! I thought you said stealing!
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.