0 a small railroad, esp. in an amusement park, with open cars that travel quickly along a steep, curved track that goes up and down over and over
an emotional roller coaster
1 a situation in which prices, rates, etc. keep going up and down by large amounts very quickly:
People must be prepared for this vertiginous and fascinating roller coaster of change.
We have seen a roller coaster ride through the 1980s and 1990s in terms of trade.
But the plain fact is that since 1979 our pound has been the sick man on the roller coaster of other world currencies.
His use of such phrases surprised me, because we have been on a roller coaster.
The last year has been something of a roller coaster.
We seem to have had a roller coaster of interest.
The boom-bust roller coaster has once again been let loose and the events of the 1980s and those of earlier decades look like repeating themselves.
Before we knew it, we were all on a roller coaster but, ironically, their own industries were damaged even more than ours.
