Kono uses the expression "Mele Kalikimaka", which is Hawaiian for "Merry Christmas".
The title of this episode (which must have greatly upset CBS censors) comes from an expression Japanese fighter pilots shouted as they led the charge on Pearl Harbor in 1941. Variants on the phrase included "To hell with Roosevelt!" and "To hell with Roy Acuff!".
One of several episodes Directed by Nicholas Colasanto who would go on to portray Coach in the tv series Cheers