Each of my kids has had his or her own word to mean breastfeeding. Princess called it "Ba Ba", Stinky called it "Nummies", Peas called it "Nursies", Pixie called it "Milky", now LittleDude (Scooter) calls it "Na Na".
Each of the kids came up with these names on their own. How adorable can you get? When a little kid comes up and looks up at you with big eyes and asks for milk. Which is asking for closeness and snuggles, how can I say no?