The dreadful sinking sensation in a long passageway encounter when both protagonists immediately realize they have plumped for the corriedoo (q.v.) much too early as they are still a good thirty yards apart. They were embarrassed by the pretense of corriecravie (q.v.) and decided to make use of the corriedoo because they felt silly. This was a mistake as corrievorrie (q.v.) will make them seem far sillier.