OVERBOARD

[adverb] [not gradable] - over the side of a boat or ship and into the waterSomeone had fallen overboard.Don't drop rubbish overboard.(informal esp. disapproving) To go overboard is to be very enthusiastic or extreme about something or to do something with a lot of energy.He had a right to be annoyed, but he went overboard and started shouting and hitting the desk.In the past ten years, Japanese people have gone overboard for squid, consuming half a million tonnes annually.(informal) To chuck/throw/toss someone or something overboard is to stop employing or using them.He has a habit of chucking assistants overboard once they've mastered the job.She threw $2 million of energy shares overboard and bought computer technology shares instead.