tfaf Share definition Flag Toilet Flush Ass Fuck: The art of inserting the head of your partner into a toilet bowl and repeatedly flushing the toilet while having anal sex. I TFAFed her good! I gave her the TFAFing of a lifetime! TFAF me again, please! tfaf by SomeRandomGuyPUA December 9, 2008 0 0 Get merch Get the tfaf mug. Buy Now — $32.95 See more merch