Quick answer: “On the rocks” means in serious trouble and likely to fail or end, especially describing a relationship, marriage, or business. (Note: the same phrase also has an unrelated literal use, describing a drink served over ice.)
On the rocks — In serious trouble and likely to fail or end, especially describing a relationship, marriage, or business. (Note: the same phrase also has an unrelated literal use, describing a drink served over ice.)
Origin & History
The figurative sense likely comes from the nautical image of a ship running aground on the rocks and being wrecked, unable to continue its voyage.
This image of disaster and helplessness transferred naturally to relationships and businesses in serious difficulty, where things are described as “on the rocks” when they are close to failing completely.
Example Sentences
| Sentence | Context |
|---|---|
| Their marriage has been on the rocks for months. | Relationships |
| The company's finances are on the rocks after a difficult year. | Business, finance |
| His relationship with his business partner is on the rocks. | Business relationships |
| The peace talks are on the rocks after the latest disagreement. | Politics, negotiation |
| Their friendship went on the rocks after the argument. | Friendship |
How to Use It
This idiom is generally used to describe the situation directly, often following a form of the verb "to be" or paired with a verb of change such as "go" or "get." It works well in both spoken and written English, and is most effective when it clearly refers to a real, specific situation rather than being used vaguely.
Common Mistakes
Mistakes to Avoid
Their marriage is on rocks.
Their marriage is on the rocks. — the article 'the' is required.
The company is in the rocks.
The company is on the rocks. — the preposition is 'on', not 'in'.
Their relationship is on the rock.
Their relationship is on the rocks. — always plural 'rocks'.
Similar Idioms
Practise This Idiom
Practice English Idioms
Use these exercises to master idioms in context:
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Quick Check: On the rocks
2 questions — test what you just learned.
1. What does “On the rocks” mean?
2. Complete the sentence: “Their marriage has been _____ for months.”
Frequently Asked Questions
What does “On the rocks” mean?
“On the rocks” means In serious trouble and likely to fail or end, especially describing a relationship, marriage, or business. (Note: the same phrase also has an unrelated literal use, describing a drink served over ice.)
Where does the idiom “On the rocks” come from?
The figurative sense likely comes from the nautical image of a ship running aground on the rocks and being wrecked, unable to continue its voyage.
Can you give an example of “On the rocks” in a sentence?
Here is an example: “Their marriage has been on the rocks for months.” — used in the context of relationships.
Is “On the rocks” formal or informal?
This idiom is neutral. It is common in everyday speech, journalism, and semi-formal writing, though it is generally avoided in strict formal or academic writing.
What CEFR level is “On the rocks”?
This idiom is typically taught at B2 level. It is a common upper-intermediate expression that appears in conversation, journalism, and general writing, and learners at this level should understand and be able to use it actively.
What are common mistakes with “On the rocks”?
A common mistake is: Their marriage is on rocks. The correct form is: Their marriage is on the rocks. (the article 'the' is required)
What idioms are similar to “On the rocks”?
Similar idioms include: On the brink, Hanging by a thread, Falling apart, On its last legs. These share a related meaning or usage context.
How do I practise idioms like “On the rocks”?
Use LexFizz's Flash Cards and Flip Tiles exercises. Try writing your own example sentences using the idiom in context, and listen for it in films, podcasts, and everyday conversation.
Can “On the rocks” be used in writing?
Yes. It works well in informal writing, emails, and journalism. In everyday and semi-formal writing it is a natural and clear choice.
Does “On the rocks” have the same meaning in British and American English?
Yes, “On the rocks” is understood in both British and American English with the same meaning: In serious trouble and likely to fail or end, especially describing a relationship, marriage, or business. (Note: the same phrase also has an unrelated literal use, describing a drink served over ice.) The idiom is widely recognised across all major varieties of English.