E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Une queue de renard. A mockery. At one time a common practical joke was to fasten a foxs tail behind a person against whom a laugh was designed. Panurge never refrained from attaching a foxs tail or the ears of a leveret, behind a Master of Arts or Doctor of Divinity, whenever he encountered them.Rabelais: Gargantua, ii. 16. (See REYNARD.)