As we previously mentioned, the Baltimore Raven's coach John Harbaugh was signaling for a ref to come talk to him and he had stepped out onto the field.
That was a big mistake. It was unsportsmanlike conduct and he was penalized for harassing the ref.
He claimed he was just trying to ask the ref for a timeout, and the fans all believed him. Or they didn't. It didn't matter. The ref penalized their coach, so they did all they could do…
They let their opinions be heard by chanting "bullsh-t!"
What's funny is the word "bullshit" aired on NBC unedited, but the FCC isn't going to fine NBC, saying:
"There’s never been any penalties imposed for obscenities inadvertently heard over air."
Since NBC couldn't really predict it and there was no tape delay, there wasn't anything they could do about it.
Plus you could argue there's no age limit at the games where we're sure plenty of children heard the chant and possibly even joined in! LOLz!