(La). Motley work. “C'est la corneille d'Esope. ”
The allusion is to the fable of the Jackdaw which decked itself with the plumage of the peacocks. The jackdaw not only lost its borrowed plumes, but got picked well-nigh to death by the angry peacocks.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894