If you're a quilter, you're probably familiar with the term "Stitch in the Ditch".… | Machine quilting patterns, Quilting designs patterns, Quilting stitch patterns
Stitch in the ditch for visual emphasis - Handi Tip with Vicki Hoth
Do I "have" to stitch in the ditch? - APQS
Why Stitch in the Ditch Is Our Go-To Quilting Move | Craftsy