My French knowledge is a little rusty but I was under the impression there would be no phonetic difference between monde and mondes (and possibly fait and faite, though I'm less sure about that).
"fait" being pronounced "faite" is a telltale sign of Québec or Acadie if I'm not mistaken
I am curious now, without revealing too much, can you give the phonetics ?
Where do you reside ?
southeast of Québec
As another Québécois I could immediately tell. That's exactly how it sounds, and I think it's a somewhat common expression.