Wormwood. The nurse says, "But, as I said, when it did taste thewormwood on my nipple of my dug and felt it bitter, pretty fool, tosee it tetchy and fall out with the dug." Wormwood is bitter andwhen baby Juliet tasted it on the nurse's breast (that's what "dug"means), she lost interest in breastfeeding. She and the breast havea cooling of affection; that's what "fall out with" means.