Watch your back.
Watch your back.
The expression 'watch your back' is a cautionary term reminding someone to remain alert to potential danger or betrayal, particularly from those they might not fully trust. This idiom is rooted in the idea of literal vulnerability from an attack from behind, where you are least able to see an approach. In today’s context, advising someone to 'watch their back' not only refers to being physically aware but also extends to political, corporate, or personal realms where competitions or rivalries exist.
Make sure to watch your back when you’re in the city at night.
Be very cautious and aware of your surroundings, especially at night in the city.
In the competitive business environment, always watch your back.
Always be cautious and aware in a competitive business environment.
She felt uneasy and kept watching her back while walking through the alley.
She felt wary and kept looking around while walking through the alley.