What does mean PEDIOPHOBIA

That`s a fear/phobia of dolls. Pediophobia is a fear of dolls or, more generally, of false representation of sentient beings such as mannequins or robots. The word is derived from the Greek word paidion, meaning little child.
Ashton Kutcher has publicly stated that he is afraid of his wife Demi Moore's collection of dolls, having grown-up watching Child's Play as a kid