hit on all cylinders

[hit on all cylinders] {v. phr.} 1. To run smoothly or at fullpower without any missing or skipping. - Said of a motor.

Themechanic tuned the car engine until it was hitting on all cylinders.

2. {informal} To think or work well; to use all your ability.

Thefootball team was hitting on all cylinders and scored a big victory.

Bob began to write his examination, and found himself hitting onall cylinders.