go South—(U.S. sl., also: head South)
1. (of a market, economy, etc.) deteriorate; lessen in quality or worth:
- All the stock market indexes went South today.
2. make an escape; run away:
- Lefty went South the minute he got out of the pen.
go West—(sl.)
1. die:
- I’m afraid—if I go west this time—I’ll be leaving you rottenly badly off, old girl.
2. (of things) perish or disappear:
- Wilson sighed. “There’s valuable evidence gone west,” he said.