What does Posh mean in British slang?

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Tags

1. #acronym
2. #likely
3. #cabin
4. #location
5. #development
6. #ships
7. #slang
8. #phrase
9. #sailing
10. #being
11. #desirable
12. #obsolete
13. #often
14. #facing
15. #shaded
16. #dandy
17. #british
18. #starboard
19. #north