I actually forgot the context. I was shocked to hear the word, more shocked that he went right on without missing a beat, but then I laughed.
I've heard him swear before. I remember one time he got going on something, and interjected, "Shit!" But that time he stopped, and apologized, and deviated from his narrative to smooth over the slip. Not so this time.
Once, he was complaining about the heat in NYC, and how he couldn't get a decent air conditioner, and he concluded disgustedly, "And I am sweating my ass off," and that was also hilarious.
God bless Rush Limbaugh.