A stash is the collection of yarn a crocheter or knitter has bought and set aside for future projects. Managing your stash — knowing what yarn, weight, and yardage you already own — helps you match it to new patterns.
'Stash busting' means deliberately choosing projects that use yarn you already own rather than buying more. HoneyBee's stash tools let you catalog your yarn so you can filter patterns to what you can already make.