STROPS

noun

1. A strap; more specifically a piece of leather or a substitute (notably canvas), or strip of wood covered with a suitable material, for honing a razor, in this sense also called razor strop.
2. A bad mood or temper (see stroppy.)
3. A piece of rope spliced into a circular wreath, and put round a block for hanging it.

noun

1. A poor-quality or unsaleable diamond.