I have no idea what exactly she's referring to but this is just too funny (Sarah Hess's  Twitter account):

@2Mjeanne It's a play on "Et tu, Brute?" but House is referring to Cuddy's "booty."
6:11 PM Oct 10th from web in reply to 2Mjeanne

Of course, some would argue that as the Roman elite more or less spoke Greek in daily private life, Julius Caesar ( Read more... )