Excuse me while I vomit on my epaulettes. I ran Google Translate over "Les manches bouffantes : explications + tuto" from mad moi Zelle, because I wanted to see how it translated "manche bouffante". Is this a collocation which translates to something equally specific in sewing English, or just a general combination like "baggy sleeve"? Google was no help, but it did provide some amusement. Here's its translation from one passage in the linked page:
In the following pages, I propose to you to make yourself a top with gigot sleeves, if you have not yet had seasickness between two shelves at Zara and that the sight of these sleeves does not give you buttons yet even in the mucous membranes.
And here's another:
This update comes one season after the reimplantation of the 80's maxi-square way by the Balmain house (among others). It would seem that this place under the sunlights (and on the catwalks) has favored the reappearance of this type of sleeve that had been abandoned in the girls' costume department for years (and Nelly Olson, this bitch.) I see it a bit like a way to say "Good guys, we made them eat squaring squares all winter, you have not an innovative idea? By what I will soon vomit on my epaulets bling-bling. And this is where a small trainee raised his hand shyly: "Well, uh, as long as we're in the revolution of the shoulders, we have not yet exploited the seam of the sleeves of cucul-la-petite-princesse Well, I do not know, you must see.
I think, Google, some more research on automated post-translation editing is needed. And why can't you translate "gigot"?