verb (used without object)
to go up and down like a roller coaster; rise and fall: a narrow road roller-coastering around the mountain; a light boat roller-coastering over the waves.
to experience a period of prosperity, happiness
, security, or the like, followed by a contrasting period of economic depression, despair, or the like: The economy was roller-coastering throughout most of the decade.
of, pertaining to, or characteristic of a roller coaster.
resembling the progress of a ride on a roller coaster in sudden extreme changeableness.