Grubbsmack Share definition Flag The act of removing a soiled condom, then repeatedly whipping her across the face with it. If she enjoys this, try the Tom Bomb. I'm gonna Grubbsmack this Ho, Fo Sho! Grubbsmack by DirtyFlyBoyz November 10, 2006 0 0 Get merch Get the Grubbsmack mug. Buy Now — $32.95 See more merch