may‧day, interj. /ˈmeɪ.deɪ/
As the standard international emergency call, grew out of communications between British and French armed forces. Whenever French soldiers needed to coerce assistance from their cross-Channel counterparts, they would remind the British soldiers of their… raucous behavior at the most recent Beltane, also known as May Day.
Reminding German soldiers of their behavior during Walpurgisnacht, however, is not recommended.