energy

Idioms (4)

• ants in your pants Informal · CEFR B1
  To be unable to keep still because you are restless or excited.
• hit the ground running Neutral · CEFR B1
  to start a new job or project with immediate energy and effectiveness, without needing a slow start
• new lease of life Neutral · CEFR B2
  renewed energy, health, or usefulness
• run out of steam Informal · CEFR B2
  to lose the energy, enthusiasm, or momentum needed to continue