three Fs Share definition Flag Finance, Feed or Fuck: A male must be doing one of those three activities for a betch to care/listen to him. What makes you think I give a shit? You are not financing, feeding or fucking me, the three Fs. three Fs by NBDNBD August 16, 2011 0 0 Get merch Get the three Fs mug. Buy Now — $32.95 See more merch