Definition of bopeep in English English dictionary
a game played with young children; you hide your face and suddenly reveal it as you say Boo!
{i} peekaboo, game played with children that involves hiding and suddenly reappearing and shouting "peekaboo" or "Boo
The act of looking out suddenly, as from behind a screen, so as to startle some one (as by children in play), or of looking out and drawing suddenly back, as if frightened