Backstitch symbolizes a stitching technique that involves making small zigzag stitches in order to securely join two fabric pieces together. This method gives durability and avoids the fabric from coming apart. The whipstitch is used for a selection of sewing projects, including sewing the hem, sewing appliques, or even making quilts. It offers a clean and skilled look to the final piece.
Whipstitch definition of whipstitch by The Free Dictionary