To discard or dispose of something. She decided to throw out all the old magazines cluttering the living room.
To expel or eject someone from a place. The manager had to throw out the unruly customer from the restaurant.
To reject or dismiss an idea or proposal. The committee decided to throw out the proposal due to budget constraints.
To utter or express something casually or abruptly. He threw out a suggestion during the meeting that sparked a lot of interest.