The idiom "bundle up" means to dress warmly or to wear many layers of clothing to keep oneself warm in cold weather. It is often used as a reminder or a suggestion to someone to wear appropriate clothing when going outside in cold weather.
For example, if it's freezing outside and someone is planning to go for a walk, you might say, "Make sure you bundle up before you go outside." This means that they should wear a warm coat, gloves, a hat, and scarf to protect themselves from the cold.
The phrase "bundle up" is commonly used in regions with cold weather, especially during the winter season. It is important to dress warmly to avoid getting sick or experiencing discomfort due to the cold weather.
In summary, "bundle up" means to dress warmly and wear layers of clothing to stay warm in cold weather.
• Don't forget to bundle up before you go out, it's freezing outside.
• I always bundle up when it's cold outside.
• It was so cold outside that I had to bundle up in layers of warm clothes.
• Despite the chilly weather, the dedicated fans still bundled up and showed up to support their team.
• As the snowstorm approached, the mountaineers bundled up in their tents and waited for the weather to clear up before continuing their climb.
• If you're planning to go skiing, make sure you bundle up properly to avoid getting frostbite.