Is that lung (sorry no accents) belt or waist-band?? In a previous question it said it was belt but when I typed it for this question it said waist-band was the answer
Maybe you made some serious typo, for which Duo bot led you to the closest synonym it can find, waist-band. It may mean waist-band, usually it means belt.
I think maybe the issue was I typed "They want the belt" instead of "belts" and it said "They want the waist-bands" was the answer