RF

noun8

1. •
   (US) reconnaissance fighter; an unarmed fighter modified for photo-reconnaissance (prefix)
2. •
   Initialism of radio frequency.
3. •
   Initialism of rangefinder.
4. •
   Initialism of right field or right fielder.
5. •
   Initialism of rheumatoid factor.
6. •
   Abbreviation of radiance field.
7. •
   Initialism of right foot.
8. •
   (slang) Initialism of ratfuck (“dirty rick or act of sabotage or interference”).

   • If battalion staff were involved, we generally called the insertion an RF, Romeo Foxtrot, or Rat Fuck. — 1997