FU

Initialism of fine used (in stamp descriptions).

Adjective

  1. Initialism of fine used (in stamp descriptions).

Noun

  1. Initialism of follow-up.

Forms

FUs

Phrase

  1. Abbreviation of fuck you.
    • Rodney’s English was pretty basic that first year, but, according to Elesin, their face said FU, no translation needed. - 2021, Isabel Waidner, Sterling Karat Gold, Peninsula Press, page 133:

Derived

FU money