go west

Short definition from Wiktionary

Verb

1. 1
   Used other than figuratively or idiomatically: see go, west.
2. 2
   Synonym of set: to move toward the western horizon, to go down.
3. 3
   Synonym of die.
4. 4
   To be lost, destroyed, or otherwise ruined.
5. 5
   To move to the American West, particularly (historical) during the 19th century era.