To save gasoline by putting a car into neutral (or depressing the clutch) when going down a hill.

The origin is uncertain, since Okies are not likely to encounter sizable hills on their native turf.

Compare with Jewish overdrive.
Janey Ellen put her Chevy pickup truck into Okie overdrive to go down Coon Holler Hill.
by Cap'n Bullmoose April 21, 2005
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When something like a heater or stove is turned up as hot as it can possibly go in order to heat things up in a room as quickly as possible.
"He put the stove on Chinese overdrive so that it got so hot it glowed."

"I set the oven to chinese overdrive to get it as hot as it could get."
by Kai01 March 18, 2008
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Is when eating at Sonic for breakfast, lunch, and dinner on the same day.
Today ended up being a supersonic overdrive, I ate nothing but sonic.
by Konkakonka February 25, 2011
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when your maximum borks for the day are 4 but you bork 5 and can't stop.
Doggo 1- bork bork
doggo 2- yo if u bork once more u will go into bork overdrive.
doggo 1- bork... botrkokrtoktrkogborkborkorkborkborkborkbrkborkborkbrokborkborkborkbork. blep
by glossy ahole July 15, 2017
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1. When you are driving, you go into Scotch Overdrive when you shift into Neutral. (Saving fuel, being a pinchpenny.)

2. Trying very hard to save money, to the point where you annoy others with your cost-saving antics.
1. We were cruising downhill on Main Street when he went into Scotch Overdrive.

2. Contractor went into Scotch Overdrive - sent us on a 5 mile detour just for some cheaper nails.
by ecdthefirst May 16, 2006
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A kickass Black Label Society song from the album The Blessed Hellride. Contains a rather large quantity of pinch harmonics, particularly during the chorus, which in the case of Zakk Wylde, is A LOT.
You'd die playing the Zakk Wylde drinking game to "Destruction Overdrive."
by Chandler89 August 22, 2006
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When a driver shifts a vehicle into neutral while going downhill, to make the vehicle go faster than if it were in gear.
Buddy I was goin' down that fuckin' hill there on up the road and I just came bombin' down it in mexican overdrive. Fuck that rig goes fast.
by fuckingiver69 November 16, 2018
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