This expression is about causing someone else to stay alert and ready for anything. Learn how to use it here. FIND A TRANSCRIPT: ✔️ https://www.bbc.co.uk/learningenglish/english/features/the-english-we-speak_2025/ep-251208 SUBSCRIBE TO OUR NEWSLETTER: ✔️ https://www.bbc.co.uk/learningenglish/newsletters FIND BBC LEARNING ENGLISH HERE: Visit our website ✔️ https://www.bbc.co.uk/learningenglish Follow us ✔️ https://www.bbc.co.uk/learningenglish/followus LIKE PODCASTS? Try some of our other popular podcasts including: ✔️ Learning English Grammar ✔️ Learning English from the News ✔️ 6 Minute English They're all available by searching in your podcast app.
