A measure of fabric in a crop top which hangs loosely over the midriff and/or the underboob. Usually does not apply to tighter-fitting crop-top garments.
A crop top and crop top overhang are frequently signature elements in the outfit of the Shimakaze (Kantai Collection) character. The same applies to the Ryuuko Matoi character from Kill La Kill.
This tag implicates crop_top (learn more).