곤두박질쳐요 · 곤두박질쳤어요 · 곤두박질칠 거예요 · 곤두박질친 (+noun)
to nosedive, to plummet; to fall headfirst
Example
경기가 나빠지면서 수출이 곤두박질쳤어요.
As the economy worsened, exports nosedived.
Word parts
From 곤두박질 'a headfirst tumble' plus 치다; pictures falling upside down.
Good to know
Vivid and informal-sounding, yet very common in news headlines about prices and ratings.
Related words