live wire

• Pessoa muito energética, animada e cheia de entusiasmo, muitas vezes impulsiva e imprevisível. Também pode se referir literalmente a um fio condutor energizado.

An energetic, lively, and often unpredictable person who is full of enthusiasm and activity.

1. Energetic personB2informal

   A person who is very lively, energetic, and full of enthusiasm.

   Pessoa energética

   • She's a real live wire at parties, always dancing and telling jokes.
   • The new intern is a live wire, full of creative ideas.
   • Even at 70, my grandfather is a live wire who never sits still.

2. Electrical wireB1formal

   A wire that is carrying an electric current.

   Fio energizado

   • Be careful not to touch the live wire, it's dangerous.
   • The electrician identified the live wire using a tester.
   • A live wire was exposed after the storm damaged the power lines.