Once confidence wavers, the whole system could collapse.
Tips
usage
Originally a finance term (stock/futures market crash), now used colloquially for anything falling apart — a server 崩盘, a relationship 崩盘, a student's mood 崩盘 before exams.
memory
崩 = to collapse, 盘 = a board/plate (here, the trading board). Picture the big red trading board collapsing in on itself.
