Super Ninja Secret (Adj.) a. To describe a secret that is ultimately THE SECRET that no one knows about or ever will. b. A secret that you can't even tell your bestest friend, or anyone for the fear it would get out. c. A secret that you can't tell no matter what. d. the secret your mother warned you about. e. when someone says they would have to kill you if they told you...yeah, that's a super ninja secret!
"OOOHHH yeah.....that secret....it's a Super ninja secret... I can't tell you!"
The best way to have sex, is still a super ninja secret.