LFFP Share definition Flag (Land Fill for Penis) When a girl is such a slut that her poon is nothing more than a landfill for cock After she hooked up with 1/2 of our floor, we realized that she was nothing more than LFFP LFFP by W & A November 18, 2006 0 0 Get merch Get the LFFP mug. Buy Now — $32.95 See more merch