On this date in 1941 (May 5th) a not very well know clash of WWII took place. This event was overshadowed by the much bigger news a couple of weeks later of the sinking of the Bismarck.

After the Germans had captured France they used some of the French fleet for sea raiding of Allied freighters. The British created strike forces to go after these raiders. One French frigate in particular was particularly onerous to run down. The French had named it, for some strange reason, "Water of Mayonnaise", but, that's the French for you. I guess it sounds better in French - "Eau de Mayonnaise".

Finally, with the British, playing catchup, spotted the frigate and gave their battle cry:

"Sink Eau de Mayo!"