1. (

• overdrive

) 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" ;

2. (

• overdrive

) a high gear used at high speeds to maintain the driving speed with less output power ;

1. (

• overdrive

) drive or work too hard; "The teacher is overworking his students"; "Overdriving people often suffer stress" ;

2. (

• overuse ,
• overdrive

) make use of too often or too extensively ;