1.to have an increase in adrenaline ready to fight

2.to rev the engine higher than normal
1.That dude was spooled up ready to fight.

2.I spooled it up and showered down on it.
by Mr. Pit July 14, 2008
Refering to when a car is producing enough exhaust to spin the the turbochargers turbine fast enough to create noticeable boost.
My GT30R turbo spool up at about 4,500 RPM.
by MikeJones818 June 11, 2006
Air Traffic Control term. To spool up is to mentally prepare for busy traffic.
Hey Doc, better spool up, here comes the arrival rush.

I'd better spool up, looks like I won't be getting any help from the next sector.
by Al-Saladin June 22, 2009