răng bà lão
Proposed by a contributor, not yet supported by evidence.
Meaning · English
Something or someone that is no longer useful or effective
Literally: old woman's teeth
Examples
Sau một thời gian dài sử dụng, máy móc đã trở thành răng bà lãoAfter a long time of use, the machine has become useless
AI-drafted example auto-approved by rule (illustrative, not a corpus attestation)
Sources & notes
Discovered via Nam ngạn chích cẩm (Phạm Quang Sán, 1918; public domain, via vi.wikisource); retrieved 2026-08-01. Source: source ↗ Attested in Nam ngạn chích cẩm (Phạm Quang Sán, 1918). Definition drafted by AI (@cf/meta/llama-3.3-70b-instruct-fp8-fast) and auto-approved by rule on 2026-08-01; pending editor spot-check.
Common questions
What does “răng bà lão” mean?
Something or someone that is no longer useful or effective Literally: old woman's teeth
Is “răng bà lão” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.