I know in one video, John mentioned Jezebel, a news site. I can't remember what video. Halp?
According to the Nerdfighteria Wiki, that word was mentioned in a SciShow, "That's Why Carbon Is A Tramp." That's probably not what you're looking for... I'm currently rewatching all of the Vlogbrothers videos, I'll keep an eye out for it. Do you know if it was in an early video or a more recent one?
I don't, no. I know it was a John video, not a Hank one.