Air Force Slang for the launching of a Sparrow Air to Air missile
"This is Gold 3, Fox One!"
by Wolfe Kerensky August 07, 2005
Expression - NATO Radio call for launch of a Semi-Active Radar Guided Missile (Usually the AIM-7 Sparrow series of missiles)
"Got Lock! Fox One!"
by Zelinko August 23, 2005