seller's block
Not being able to sell something; product, item, service, etc. for a long period of time. (Can be retail sales or personal ad sales)
(Similar to a writer's block, but in relation to sales.)
(Similar to a writer's block, but in relation to sales.)
I haven't been able to sell my iPod on Craigslist for 1 month now! I must be having a seller's block.