Warm Butter Slap Share definition Flag Slapping your girl back and forth across her face with your post-coitus, wet, semi-flaccid penis. After Rachel got my nut, I treated her to a few warm butter slaps before wiping up and leaving. Warm Butter Slap by Eaton Holgoode January 19, 2018 0 0 Get merch Get the Warm Butter Slap mug. Buy Now — $32.95 See more merch