What does fox Trot Oscar mean?

Answer 1

Fox-trot and Oscar are the U.S. military phonetic designations of the letters "F" and "O".

It's the military's way of saying "F as in Fox-trot, O as in Oscar." In order to insure understanding on field telephones, helicopter radios and other communication devices, the words are sometimes used instead of the letters. For instance, if a map is divided on a grid designated by letters on the side and across the top, you might request a rescue helicopter to "Yankee Alpha" or "Zulu Alpha"

Here is the phonetic alphabet: Alpha Bravo Charlie Delta Echo Fox-trot Golf Hotel India Juliet Kilo Lima Mike November Oscar Papa Quebec Romeo Sierra Tango Uniform Victor Whiskey X-ray Yankee Zulu

So, "Fox-trot Oscar" means "F.O." Maybe that's short for something.