O'shiddasecond

Like the onosecond, but instead of doing something goofy like sexting your sister, you realised she was a prostitute, after fucking her.

Something to really make you go, Oh shit.

Person 1: Dude I just sexted my sister haha!
Person 2: ...
Person 1: Shit, I didn't mean to remind you about your O'shiddasecond!