Overdrive

[Little_Girl]

[Overdrive] is when you get hyper-active due to being over-tired, over-worked, or over-stressed. Common symptoms include [slurred] or incoherrent [speach], laughing histerically over stupid things, and improper brain function, while in a sober state.

[Becky]

A gear in a motor vehicle providing a gear ratio higher than that of direct drive (the usual top gear), so that the engine speed can be reduced at high road speeds to lessen fuel consumption or to allow further acceleration.

[Tina]

a state of great activity, effort, or hard work: