Top Definition
To exude tremendous effort, to try extremely hard.
I decided to slack off and get a B in the class, but Ross went balls out and got a 100%
Por Casey 11 de junio de 2003
Originally referred to the governor on old steam engines that had two ball that rotated across one another that would control speed depending on how fast they spun. Balls out meant going full speed or power.
That old steam tractor was going balls out.
Por tradesman 21 de noviembre de 2003
This refers to the governor on a steam engine. Two heavy balls are attached to the engine so that as engine speed increases, the centrifigal force of the flywheel causes the balls to rise. As the balls top out, they govern (limit) the engine, thereby controlling maximum engine speed. "Balls out," then, refers to running the engine at maximum speed.
The engineer was running the train at a "balls out" pace while trying to make up time.
Por Blueglowizard 18 de abril de 2009
giving your all in a certain situation, being courageous
You should've seen me out there, I started to choke but then I went totally balls out.
Por skrilla 17 de junio de 2003
a unit of measure regarding to the top end speed of something.
when asked by the officer how fast he was going bill replied "im not sure but it was pretty ballsout.
Por tellitizaman 06 de septiembre de 2010
Old timey terminology: on steam engines, they had steel balls in there that resricted steam flow. When the conductor was ready to pick up speed, he'd yell "Balls out!", signaling the help to do just that, thereby letting them haul some ass.
"Balls out! We got to mow down those hobos!"
Por Dutch Grosse 29 de septiembre de 2003
Balls Out means many things. 1. Literal balls out of pants 2. No fear 3. Goin for it 100%
it's what we are. Steel Panther is Balls Out.

- Stix
Por better than tessa 04 de septiembre de 2011

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