The idiom "blow the cobwebs away" means to refresh oneself by getting some fresh air or exercise, or by doing something invigorating that helps to clear one's mind and make one feel more alert and alive. It is often used when someone has been feeling sluggish or tired, or when they need to shake off the effects of a long period of inactivity or boredom.
For example, you might say "I need to go for a run to blow the cobwebs away" if you've been sitting at your desk all day and need to get some exercise to feel more energized. Or you might say "Let's go for a walk on the beach to blow the cobwebs away" if you've been feeling stressed or overwhelmed and need to clear your mind and relax.
Overall, this idiom is a great way to describe the feeling of needing to do something active or stimulating to shake off the effects of a sedentary or monotonous lifestyle.
• Let's go for a drive in the countryside and blow the cobwebs away.
• I always feel better after a good run. It's a great way to blow the cobwebs away.
• The best way to blow the cobwebs away from my writing is to take a break and come back to it with fresh eyes.
• I need to go for a walk to blow the cobwebs away after sitting at my desk all day.
• After a stressful week at work, I decided to take a weekend break to the beach to blow the cobwebs away.
• I felt like I needed to blow the cobwebs away from my mind, so I took a meditation retreat in the mountains.