heel-and-toe

Short definition from Wiktionary

Noun

1. 1
   An advanced driving technique that involves operating the throttle and brake pedals simultaneously with the right foot, facilitating normal activation of the clutch with the left foot.
2. 2
   A mode of walking in which the heel of one foot is put on the ground before the toe of the other leaves it.
3. 3
   Of a system of watches: comprising equal-length periods on and off watch.