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Now how about bat-wing blousons. This one must be obscure considering it gets only one Ghit



There are more hits than that... Try without the - and the 's'. Also try not exact phrase.

Batwing is a style of big floppy sleeve. A blouson is a loose top with a tighter waist such that the fabric above the waist can hang over fabric at the waist. A batwing blouson would be the combination of having big floppy sleeves on a waisted top.

There is also such a thing as blouson sleeves (loose with a cuff) but I think the cuff would automatically make them not batwing sleeves.