Definitions

1. noun

A term of endearment for a breast, often used in affectionate or playful contexts.

“The baby loved her breastie after a feeding.”

2. noun

A female breast, especially when associated with female-specific nurturing, such as lactation or breastfeeding.

“The mother proudly showed off her breastie to the other mothers at the support group.”

3. verb

To nurse or feed at the breast.

“The new mom was learning to breastie her baby properly.”