Pin. a thin piece of metal with a sharp point at one end and a round head at the other, used especially for fastening pieces of cloth and also the easiest way to adorn a bright rhinestone parrot to your lapel should you want to. At In Her Shoes we have a wide selection of pins, from classy to funky and straight out right over-the-top. All proceeds from sales go directly back into supporting our employment and entrepreneurial program.