Word coined by formula feeding mothers and used in a poor attempt to insult breastfeeding mothers whose success at nursing causes them to feel guilty over giving up and choosing an inferior food.
Like the word "cunt" (ref: "Vagina Monologues"), it has been captured by breastfeeding mothers and used as a term to describe a mother who cares enough to be passionate about giving their childrenthe best and healthiest start in life.
"Sarah nursed her baby in the restaurant last night and didn't cover up! She's is such a boob nazi!"