v.1. To propel or discharge something into the air: He threw the ball up and it landed on the roof. The lawn mower threw up a rock.
2. Sports To execute some type of throw or a throw with some outcome: The quarterback threw up an interception.
3. To raise something quickly: They threw up their hands in exasperation. The color guard threw up the flag.
4. To eject some contents of the stomach by vomiting: The baby threw up her dinner. He threw the medicine up.
5. To vomit: The passenger threw up over the side of the boat.
6. To abandon something; relinquish something: She threw up her campaign for mayor. He threw the idea up because there was no support for it.
7. To construct or erect something hurriedly: The city threw the building up in under a year. The new apartment complex was thrown up in just a few months.
8. To refer to something repeatedly: She threw up his past to him whenever they argued. She wanted to forget the argument, but he kept throwing it up.
9. To project, play, or otherwise display some slide, videotape, or other recorded image: My cousin threw the tape of vacation highlights up on the screen. The teacher threw up the slides of the operation.
10. To post something: The team threw up five goals. The coach threw the results up on a bulletin board.
11. To put something forth for consideration or discussion: The accident threw up many questions. The elections threw many surprises up.