Interjection
man overboard!
(nautical) A cry used to announce that one of the crew or passengers has fallen over the side of the vessel.
Zingers from the Hollywood Squares LP, Event Records, 1974 Paul Lynde: Off Center, A&E Home Video, 2001 : Q: "Paul, any good boat enthusiast should know that when a man falls out of your boat and into the water, you should yell 'Man overboard!' Source: Internet