Definition
An indication that something, or someone, is old and out of date.
In Context
- "Tony Blair insists on remaining in office well past his sell-by date - yet he can afford to go."
- "September 9, 2017 - Schlock Mercenary Manifold: This is not a team, Petey. This is just another mass grave. Ewin: Eeew. What's the sell-by date on that manifold? I think it's gone bad."
- ""They have gone past their sell-by date. But the fitters have done an amazing job keeping these units running for as long as they have."