bad word

We were eating dinner tonight and out of the blue, I heard the Lion say, "Damnit."

"Excuse me?" I asked him. "What did you just say?"

He took one look at my face and said, "Nothing."

"Lion! Seriously, what did you say?"

Blue piped up, "he said damnit."

"That is very bad to say," I told them both. "Where did you hear that?"

Blue pointed at Lion. "He just said it."