投げ出す

1. Origins, structure, and basic meaning

• Structure: 投げ出す, read なげだす, denotes throwing an object down or abandoning a task or responsibility midway.
• Basic usage: It covers physically throwing luggage down and abandoning difficult work midway.

2. Common pitfalls and similar expressions

• From throwing down to giving up
  • The physical sense of throwing something down extends to abandoning a responsibility or task before completion.