This product has become a completely unprofitable line.
We need to dispose of the dead stock.
best-selling line; popular products; hot sellers
Standard kanji spelling.
Variant spelling without okurigana; less common but still used.
Compound of 死に (stem of 死ぬ, 'to die') and 筋 ('line, lineage'), literally 'dying line'. The exact historical derivation is uncertain, but the term is used in business contexts to describe unprofitable product lines.