Once in a blue moon
Rarely
I only go clubbing once in a blue moon now.
Your friend asks how often you go out drinking these days, and you want to say it's hardly ever.
Literally a "blue moon" is an unusual extra full moon that happens occasionally (the term isn't about the moon actually being blue). In practice it means something happens very rarely or almost never. It's a friendly, everyday idiom and works in both casual and semi-formal conversations. People use it to exaggerate rarity in a playful way, and it's common in American and British English.
"Once in a blue moon" does not mean at the very last minute, for a long time, every other day. It specifically means "Rarely".
Why Learn English expressions that make you sound native?
🎯 Why Learn English Expressions and Idioms
You can study English grammar for years, ace vocabulary tests, and still sound awkward in real conversations. The difference between textbook English and native fluency isn't grammar rules — it's expressions. Native English speakers communicate through idioms, phrasal verbs, and fixed expressions that have meanings far beyond their literal words. If you've ever heard 'break a leg', 'beat around the bush', or 'the ball is in your court' and needed a moment to process, this course fills that gap. Real English fluency means understanding not just words, but the expressions that carry cultural meaning and natural flow.
👤 Who This Course Is For
This course is perfect for intermediate English learners (A2-B1 level) who have solid grammar foundations but want to sound more natural, international professionals working in English-speaking environments who need to understand workplace idioms, students preparing for immersion in English-speaking countries, and English learners frustrated by the gap between their textbook knowledge and real conversations. You should be comfortable with basic English conversation and ready to expand your expressive range with authentic native expressions.
📚 What You'll Learn
Master dozens of essential English expressions used daily by native speakers. Learn classic idioms like 'bite the bullet' (face a difficult situation), 'spill the beans' (reveal a secret), 'under the weather' (feeling ill), and 'once in a blue moon' (very rarely). Understand common phrasal verbs like 'figure out', 'catch up', 'put up with', and 'come across'. Discover conversational expressions like 'you bet', 'no kidding', 'that makes sense', and 'I can't complain'. Each expression includes detailed explanations of both literal and figurative meanings, usage contexts, formality levels, and common mistakes to avoid.