Overdrive (band) definition

(1) A high gear used at high speeds to maintain the driving speed with less output power

(2) The state of high or excessive activity or productivity or concentration

"Troops are ready to go into overdrive as soon as the signal is given"

"Melissa's brain was in overdrive"

(3) Make use of too often or too extensively

(4) Drive or work too hard

"The teacher is overworking his students"

"Overdriving people often suffer stress"