The last straw
/ðə læst strɔː/neutral, informalUK · US · AU · IE · CA
What does “The last straw” mean?
The last straw means this refers to the final problem in a series of unpleasant events that makes a situation completely unbearable.
This idiom describes a small annoyance that follows many other problems. By itself, the event might not seem important. However, it is dangerous because it comes when a person is already exhausted, making them finally lose control.
Using this phrase expresses sharp frustration and a sense of finality. It shows that your tolerance has completely run out. People often say it right before they quit a job, end a relationship, or make an angry complaint.
When do people say it?
People use this phrase when a new annoyance pushes them past their limit.
“He had a terrible week, and losing his keys was the last straw.”
Is it formal or informal?
Register: neutral, informal. It is most at home in both everyday conversation and professional writing. Most common in UK and US and AU and IE and CA.
Where does it come from?
It comes from an old proverb about loading too much straw onto a camel until a single extra piece breaks its back. Writers shortened the expression in English during the nineteenth century.
Origin confidence: Well documented
How do you say “The last straw” in other languages?
Last reviewed 2026-09-11