technical debt
/ˈtɛknɪkəl dɛt/
Very CommonThe future cost of shortcuts taken now, piling up until someone has to pay.
Not always avoidable. Sometimes intentional debt is the right call. The problem is when it accumulates without anyone paying it down.
Real-world examples4 examples
| # | Example | What it means | Source |
|---|---|---|---|
| 01 | we've been 'almost done' with this feature for 3 weeks because of technical debt we ignored last year | Past shortcuts are now the main blocker on current work. | x, 2024 |
| 02 | PM: why does this take 2 weeks. me: technical debt. PM: what's that. me: it's 4 years of bad decisions | The difficulty of explaining accumulated debt to a non-technical stakeholder. | x, 2023 |
| 03 | we took on technical debt to ship in Q4. now it's Q2 and nobody is touching it. classic. | The debt taken on to meet a deadline was never repaid and is now a permanent problem. | reddit, 2024 |
| 04 | half our sprint is just paying down technical debt from the v1 rewrite | The team is spending significant capacity fixing past shortcuts rather than shipping new things. | x, 2024 |
Use it when
- A feature takes longer than expected because the old code is a mess.
- Explaining to a PM why something 'simple' takes two weeks.
- Advocating for a refactor sprint to the team.
- Describing the consequence of years of 'just make it work' decisions.
Do not use it when
- You just mean there's a bug.
- You mean the code could be more efficient.Use “optimization” instead.
- You mean a feature is missing.
Technical debt vs legacy code
technical debt
Technical debt is a cost you accumulate through decisions. You can pay it down.
VS
legacy-code
Legacy code is just old code. It may or may not be debt.
Origin and context
Coined by Ward Cunningham in 1992 as a metaphor for the cost of shipping code that isn't quite right. The financial debt analogy stuck because it captures both the inevitability and the compounding nature of the problem.
- First seen
- 1992
- Confidence
- high
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https://slang.fyi/technical-debt-irlUpdated: 2026-08-28License: CC BY 4.0