Top Definition
Code used by NATO Air Force pilots to indicate air-to-air or air-to-surface gun fire.
I'm out of missiles, Fox Four.
by thefosh August 16, 2009
1 more definition
7 Words related to Fox Four
A take on the Air Force slang terms for firing missiles. This one means to ejaculate.
During sex: 'FOX FOUR!'
by Jordan Garland March 28, 2007

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