na-na na-na boo-boo

phrase1

1. •
   (informal, disapproving) A taunt or putdown, typically used to indicate that the speaker believes they has beaten the listener in a competition or is better in some other way or in a general sense; or an expression of satisfaction that the listener has received some supposedly deserved minor punishment or misfortune (that is to say, schadenfreude).

   • ... is that the educators out there aren't aware of this, they don't know it or what? Ms. Bolinger. It's like na na na na boo boo, make me do it. [Laughter.] ... — 1992