I was looking at a rag quilting book I have while ago and was reading a section about using applique with rag quilts so that the applique edges are raggedy as well. To achieve that, they said to sew a 1" strip of fabric around the applique edge using a "triple stitch".

O.k., so I'm stumped. What's a "triple stitch"? Obviously something to do with the number '3' but what?