'Complete a confusion' -- expression or confusion?

Question

Is complete someone's confusion a popular expression that makes sense?

This expression pops up so often I wonder I am missing something here.

Does complete here mean to 'resolve'/ 'clarify'?

_{Blaise Pascal, et al., The provincial letters of Pascal, p314}

And is it necessary, in order to complete your confusion, to bring forward the words of M. de St. Cyran, in the same letter, in which he speaks of the sacrifice of the Mass as the most excellent of all, …

_{Sergey Fomin, Symmetric Functions 2001:, p.30}

To complete your confusion, we define another morphism a: #n_i,n ->F (15) sending (/n_i, /n) to (/n, P)-

_{Brown University: Man's contracting world in an expanding universe:, p165}

Then I shall make a summary statement to complete your confusion.

Although, I was imagining the expression should, if at all, mean further confounding, as in:

_{Jane Aiken Hodge, Runaway bride, p191}

"… And now, to complete your confusion, she too, is run off. It is not an edifying story, Mr. Gurning."

Answer 1

I believe to complete your confusion means to deepen it, not resolve it. It is a very mildly sardonic way of saying, "and now, as if that wasn't bad enough, I add this fact..." or a self-deprecating way of saying "if I've confused you, I'm sorry to make it worse by adding yet more to it."

It's clearer in this answer to a foreign language speaker who was wondering why blue - which to her meant only a color - was being used to describe a vacuum cleaner ("How to Clean a Magic Blue Vacuum Cleaner".) A responder pointed out different meanings of blue (feeling blue, a blue moon, blue movies) and added, to sum it up,

and to complete your confusion, some one with red hair is often called Bluey.

In this blogpost, someone muses on how Germans perceive vs. name colors. Turning to examples in beer, he mentions

"White" beer, otherwise known as Wheat beer, Hefe-Weizen, Weissbier, Witbier, etc. is a fine, delicious example. The term "White" comes from the brewing process when the wort boils to a point when the top foam becomes a particular 'white' color... In Berlin, however, there are two varieties of this "Weisse Bier": Red White beer and Green White beer...

To which someone replies

To complete your confusion: there exists also “schwarzes Weissbier” – black white beer which tastes more like malt and smoke.