If somebody goes against the pre-defined rules of social cannabis smoking.
When passing round a "spliff", if a member of the group passes it the wrong way, i.e. anti-clockwise, it is know as obtation. A member of the group merely has to say the word to acknowledge the wrongdoing.
Any abortion which takes place during Obama's reign of terror. Any abortion that can be attributed or linked to Obama's stance on partial birth abortion, stem cell research, or any late term abortion.
She got knocked up, and Obamacare came to the rescue by fully funding her Obortion.