[fucksmack] Share definition Flag Whilst having sex doggy style, these are the slaps the man puts onto his partners ass. Lets go to bed so I can do you doggy and fucksmack your ass. [fucksmack] by John Kev November 2, 2008 0 0 Get merch Get the [fucksmack] mug. Buy Now — $32.95 See more merch