go south

US /ɡoʊ saʊθ/
UK /ɡoʊ saʊθ/
"go south" picture
1.

achteruitgaan, mislukken, misgaan

to deteriorate, fail, or go wrong

:
Their business started to go south after the economic downturn.
Hun bedrijf begon achteruit te gaan na de economische neergang.
The plan seemed good at first, but then everything started to go south.
Het plan leek eerst goed, maar toen begon alles mis te gaan.