D-Flap Share definition Flag Comes from the three root words: Dick, face and slap. The action of slapping a female in the face with one's dick. "I took your mom out to dinner last night and as a thank you, she let me D-flap her." D-Flap by The Z-Man December 16, 2005 0 0 Get merch Get the D-Flap mug. Buy Now — $32.95 See more merch