Happy event

[шутливое] рождение ребенка; новорождённый

Большой англо-русский словарь

Happy event

счастливое событие, рождение ребёнка (особ. первого)

Англо-русский фразеологический словарь
happy event
happy
happy as a king
happy as a possum up a gum-tree
happy camper
happy couple
happy day
happy days!
happy dispatch
happy dust
happy end
happy hardcore
happy hour
happy hour price
happy hunting ground
happy mean
happy medium
happy shop
happy slapping
happy talk
happy the wooing that's not long doing
happy year
happy-go-lucky
a happy dispatch
a happy family
a happy release
bomb-happy
many happy returns
slap-happy
the happy day