I'm not proud of this, hence not giving my name.

During the Korean conflict (does this date me?) I was stationed at a base where we had to march in formation everywhere we went. The base Chaplin ordered that during the month of December we were to sing Christmas songs while we marched. Our squadron wrote and/or stole several parodies and sang them as we marched. Most were simple gross - this is one I can print. BTW, we were confined to barracks for two weeks, and the order to sing was rescinded.

To the tune of "Hark the Herald Angles Sing":

Uncle George and Auntie Mable
Fainted at the kitchen table
This should give sufficient warning
Never do it in the morning
Ovaltine has set them right
Now they do it every night
Uncle George is hoping soon
To do it in the afternoon.