SMBFP Share definition Flag Short for “Suck my big fat pussy,” used as an alternative to “fuck you.” Girl 1: You be lookin hella ratchet todayGirl 2: SMBFP, Bitch! SMBFP by xxeberdtxx July 19, 2021 0 0 Get merch Get the SMBFP mug. Buy Now — $32.95 See more merch