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. From roller coaster, a railway for amusement consisting of inclined tracks along which small cars roll, abruptly dip, turn, etc. See also potential trouble source in this glossary.—OEC - Out-Tech App Mar 91