there's many a slip twixt cup and lip
Proposed by a contributor, not yet supported by evidence.
Also seen as: there's many a slip between the cup and the lip · there's many a slip 'twixt cup and lip
Sense 1
In any situation, however well planned, something can always go wrong.
Register: dated
Examples
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 2
Things can still go wrong even when success seems close
Examples
AI-drafted example auto-approved by rule (illustrative, not a corpus attestation)
Sources & notes
Listed on English Wikiquote “English proverbs” (CC BY-SA 4.0, retrieved 2026-07-31). Definition drafted by AI (@cf/meta/llama-3.3-70b-instruct-fp8-fast) and auto-approved by rule on 2026-07-31; pending editor spot-check.
Common questions
What does “there's many a slip twixt cup and lip” mean?
In any situation, however well planned, something can always go wrong.
Is “there's many a slip twixt cup and lip” formal or informal?
there's many a slip twixt cup and lip is generally dated.