The unofficial word for the fleshy part of the nipple that gets
hard and erect like a tiny frozen bubble of gum or a teensy little rosebud.
It is located in the middle of the areola (the
flat area of the nipple that fades into the rest of the skin and sometimes gets little bumps of its own when
cold).
Nipple buds are way
fun when someone (or yourself) plays with them, and they are an excellent indicator that you need to take a break from shopping in the refrigerated foods section.