See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. It's time to 'lock in.' At least, that's the sentiment on social media.

Forbes contributors publish independent expert analyses and insights. Caroline Castrillon covers career, entrepreneurship and women at work. The latest viral trend on TikTok is not a dance or a meme.

“The Great Lock-In” is here, and if you’re thinking youth group sleepovers or overnight school field trips at a museum, then this explainer is for you. This lock-in — also known as the “winter arc ...