Definition:
The phrase "fetch up" is a verb that often means to end up in a particular place or situation, usually unexpectedly. It can also mean to arrive at a conclusion or result after a journey or process.
In more advanced English, "fetch up" can be used in literary contexts to describe characters or situations that change unexpectedly. It can also appear in discussions about fate or destiny.
Wind up: To finish or end up in a particular situation (similar usage).
End up: To reach a final state or condition after a series of events.
"Fetch up" is an informal expression used to describe the act of ending up somewhere or in a certain situation, often unexpectedly.