to fall or slide down; to decline; to fall in value
His golf game is going south.
slang; goes south, going south, went south, gone south
And when bets started to go south, the market, realizing that it had no way to assess the extent of the damage, freaked out.
Nut oils are expensive and go south faster than geese in winter.
If events continue to go south in a big way, the IRGC might be forced to choose between competing, compelling security priorities.
The equivalent of that nerve— the most direct route to its end organ—is to go south of the equivalent of the artery.
Unfortunately, when things go south, they go south very quickly.
Why does she go south for the same salary she has had in New Hampshire?'
After a moment's consideration he decided to go south toward the wreck.
It was not very long after this that a party of young men set out to war, all mounted, to go south to look for the Utes.
All of them go south between the middle of July and the first of October.
For a man of my constitution I've made up my mind it would be just the worst thing to go south at all.
"vanish, abscond," 1920s, American English, probably from mid-19c. notion of disappearing south to Mexico or Texas to escape pursuit or responsibility, reinforced by Native American belief (attested in colonial writing mid-18c.) that the soul journeys south after death.
[probably fr the notion of disappearing south of the border, to Texas or to the Mexican border, to escape legal pursuit and responsibility; probably reinforced by the widespread Native American belief that the soul after death journeys to the south, attested in American Colonial writing fr the mid-1700s; GTT, ''Gone to Texas, absconded,'' is found by 1839]