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1 definition by Ultimate Reality

 
1.
A phrase synonymous with "ENGAGE." Used to command those with potential energy to exert their energies, i.e. going to maximum afterburners, opening fire, going to 7K rpm.

A succinct phrase which is akin to saying "give it everything you've got"
Sgt. Mckinzie: "There's a Pave Low and an Apache overhead, Captain."
Cpt. Freeman: "LIGHT 'EM UP"

"It's the nineties, and there is time to light 'em up"
by Ultimate Reality December 10, 2009