sanuga
The real name of the character Pitch Black in the movie Rise of the Guardians. Don't let your kids near him for he will ruin the dreams. Because he too is secretly a kid plotting attacks on other kids with his dolls and imaginary friends.
Eg:
Kid : Mom, my friend said Santa is not real. *cries*
Mom: Oh jeez your friend had pulled a Sanuga on you.
Kid : Mom, my friend said Santa is not real. *cries*
Mom: Oh jeez your friend had pulled a Sanuga on you.