overdrive

noun over·drive \ˈō-vər-ˌdrīv\

: a gear in an automobile that allows it to be driven at higher speeds

: a state of great activity especially in order to achieve something

Full Definition of OVERDRIVE

: an automotive transmission gear that transmits to the drive shaft a speed greater than engine speed

: a state of heightened activity <going into rhetorical overdrive>

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1926

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