SBQ: Stitching Terminology

This SBQ is:

For seasoned stitchers: Define a stitching term or acronym for new stitchers.
For newbies: What stitching term or acronym would you like defined?

I know that this one was already covered by now, but a term I didn’t know for a while was SABLE – Stash Acquired Beyond Life Expectancy. That is SO me! 😆