The phrasal verb "curl up" is predominantly used in informal speech or casual writing, rather than formal contexts. It typically describes the action of wrapping oneself into a tightly compacted or snug position, often for comfort or warmth. Usage is common when someone is physically curling their body, such as curling up into a ball on a couch or in bed, to relax or nap. The phrase may also be used metaphorically to describe a reaction to emotional discomfort, such as wanting to "curl up and hide" when embarrassed or distressed. Its frequent use in informal contexts aligns with scenarios involving personal feelings and relaxation, where the tone is intimate rather than formal. Overall, "curl up" is a relatable, vivid description of a common, everyday action.
B1
PreIntermediate
1. To sit or lie in a comfortable, rounded position, often with the knees close to the chest.
After a long day, she likes to curl up on the sofa with a good book.
The cat curled up in a warm spot by the window.
He curled up in bed and fell asleep immediately.
2. To become smaller or more compact in size; often used metaphorically to describe a defensive or protective body position.
The hedgehog curls up when it senses danger.
In the cold weather, she instinctively curled up to stay warm.
Feeling threatened, he curled up defensively on the floor.