nipple 69 Share definition Flag the sexual act in which both parties suck each others nipples while laying in a 69 position. Majki wanted a 69 but since Dorelyn had her period they settled for a nipple 69. nipple 69 by Majki July 9, 2010 0 0 Get merch Get the nipple 69 mug. Buy Now — $32.95 See more merch