/oh"veuhr bawrd', -bohrd'/ , adv.
1. over the side of a ship or boat, esp. into or in the water: to fall overboard.
2. go overboard , to go to extremes, esp. in regard to approval or disapproval of a person or thing: I think the critics went overboard in panning that new show.
[ bef. 1000; ME over bord, OE ofer bord. See OVER, BOARD ]