umbilical dip Share definition Flag A British term for the navel or "belly button" in the center of a human torso. When the belly dancer swayed erotically, her umbilical dip bobbed in time to the music. umbilical dip by thundatune12 August 8, 2012 0 0 Get merch Get the umbilical dip mug. Buy Now — $32.95 See more merch
