Who knew that the phrase babymoon had been around so long!? Not I! I thought it was one of those newfangled hipster/millennial/urban dictionary words. babymoon noun ba·by·moon | \ˈbā-bē-ˌmün \ plural babymoons Definition of babymoon 1: a period of time for parents to spend alone with their new child soon after the child’s birth… many health-care professionals … think new …