The phrasal verb "shape up" is predominantly used in informal contexts, although it can appear in more casual professional settings. It generally means to improve one's behavior or performance, often with an implication of urgency or necessity. For example, someone might say "you need to shape up or you're fired," indicating the need for rapid improvement to avoid negative consequences. "Shape up" can be used to address personal development, such as improving habits or health, or in a broader sense, referring to any context where betterment is required. It is frequently used in motivational contexts, sometimes as a directive, and can carry a stern tone, especially within hierarchical structures like the military or workplaces. Despite its informal origins, the phrase has permeated professional environments, particularly as a colloquial way to discuss improvement and change.
B1
PreIntermediate
1. To improve or reform one's behavior or performance.
He needs to shape up if he wants to keep his job.
She was warned to shape up or face disciplinary actions.
2. To develop or take form in a specified manner, usually in a positive or expected way.
The project is shaping up nicely and should be completed on time.
Our vacation plans are shaping up well with the new itinerary.