a coined term meaning a person who feels good afterauditing and then feels bad; a slump after a gain. It's a case that betters and worsens; the person goes up and he goes down and h e goes up and he goes down. The term is also used in reference to a n organization's doing well and worsening in a similar fashion. From roller coaster, a railway for amusement consisting of inclined tracks along which small cars roll, abruptly dip, turn, etc. —ESTO - Estos Instant Hat, Part II Approved Glossary