Destash
Selling items from a personal collection that are no longer wanted. Common in craft (fabric, yarn, beads) and fashion communities. Depop and Facebook groups are the typical venues for destash sales.
Where you'll see this
This term is commonly used on:
depopfacebook-marketplaceetsy
Put this into practice
Shopfront handles the hard parts of crosslisting and inventory sync so you can focus on finding and selling.