A group jumping overboard.
- An example of overboard is a how someone’s sunglasses fall when someone drops them off the side of the cruise ship; dropped overboard.
- An example of overboard is extravagantly celebrating a coworker’s birthday; going overboard with a celebration.
Overboard is defined as over the side of a ship and into the water, or being too excited and doing too much.
- over a ship's side
- from a ship into the water
Origin of overboardMiddle English ouer borde from Old English ofor bord: see over and board
Informal to go to extremes; esp., to be wildly enthusiastic
Over or as if over the side of a boat or ship.
(comparative more overboard, superlative most overboard)