'Game Of Thrones': Inside This Week's Second Most Shocking Scene

Everybody may be talking about the brother/sister sex, it was a gross snot rocket that had us dry-heaving.

On this week's "Game of Thrones," there was one moment so insane, so polarizing that the whole fandom was freaking out the next morning.

It was a moment not from the books, one that took a familiar character we had started to like and moved them to a point where we were once again utterly disgusted by their actions. Once this character did what they did, we didn't know if we could ever look at them the same way again.

We're talking of course about what went on in the totally gross scene where The Hound (Rory McCann) shot something green out of his nose while talking to Arya Stark (Maisie Williams).

"Oh my god, did you see that?" McCann said, laughing, when we asked the actor about the moment on the "Game of Thrones" red carpet in New York.

Williams also recalled the great snot incident, though not as fondly as McCann.

"It was disgusting, and I was dry-heaving throughout the whole day," Williams recalled. "It was awful."

Bu the question — the most important question — in the history of HBO's hit show remains: just what was in McCann's nose?

"I think the first one was real, and I can't believe I had to do that," McCann continued. "I don't know what it was, it was this green stuff that kept squirting out my nose. And the director kept going, 'More snot, more snot.' "

Williams, for her part, stayed consistent in being grossed out.

"And he was so loving it, too!" Williams said. "Like every take, really going for it. And I was like [retching motions]."

"I remember Maisie looking at me and going, 'Are you not embarrassed? Are you not embarrassed for yourself?' " McCann shot back, once again laughing.

Though we may never know what was really in The Hound's nose, we do know fans have taken to calling the incident The Green Wedding. Just kidding, no they haven't.

"Game of Thrones" airs Sundays at 9 p.m. ET on HBO.