As a French, I have never heard about this name. The article mentions the Château de Meudon, which I know reasonably well (I took the aerial views linked to on

As a French, I have never heard about this name. The article mentions the Château de Meudon, which I know reasonably well (I took the aerial views linked to on the wiki page https://en.wikipedia.org/wiki/Ch%C3%A2teau_de_Meudon https://en.wikipedia.org/wiki/Ch%C3%A2teau_de_Meudon): "ha ha" isn't found on that page, and I can't think of an example of such a construction in the domain. Isn't this a term attributed to the French but exclusively used in English...?