Questions about example sentences with, and the definition and usage of "Rev"

A: Statements that will shock or surprise and raise people's heart rates (pulses). To rev or revving is when you push the accelerator in a vehicle and the revolutions of the pistons in the engine increase in speed.

A: It means that the speaker is either sleepy, tired, sore, sick, scared or for some other reason doesn't feel ready to do something, and to rev/revving myself up means to get oneself prepared through some means other than a slow natural process.
Ex. "I was sore before my football game, so i revved myself up with some exercise"
"I didnt want to wake up this morning, but i revved myself up with some coffee"
"I was scared of sky-diving, but i revved myself up with some music"
Revving oneself up might also be purely psychological, and not require any physical aspect.
It is not a common expression, and is very casual, but athletes, soldiers, or fighters might use this phrase more regularly. The phrase comes from the word revolution, and was first used to describe the act of increasing the speed, or "revolutions per minute", of an engine.

A: It means "To push the throttle on an engine so that it makes noise."

https://www.youtube.com/watch?v=uitzOD5Z9PM

When the bike gets louder. that's the person twisting the throttle and "revving".

A: "Rev it up" refers to the speed of an engine. The speed is measured in revolutions per minute. Revolutions is often shortened to "revs." So, to "rev it up" means to increase the engine speed.

It can also be used as slang to say something like "excite," or "make more intense."

For example, if you want to make something more exciting, you might say you want to "rev it up."

A: It's a sound a car makes when you press your foot on the gass peddle.. the engine of the car revs

A: everyone is reving up for the upcoming event

A: she revved up the cars engine

A: If you mean how is the pronunciation, so it is:

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