What is Fantaboo?
1.
1. Too good to talk about. A contraction of "Fantastic" and "Taboo."
2. I'm not saying anything because you'll get pissed.
1. Do you think anybody knows about that?
Fantaboo. We don't want anybody to. It'll be ruined if everybody knows.
2. What'd you get on the test?
Oh, fantaboo. We'll just leave it at that.
See