baby duck syndrome UK /ˌbeɪbi dʌk ˈsɪndɹəʊm/US /ˌbeɪbi dʌk ˈsɪndɹoʊm/ noun1 •(humorous) The tendency of computer users to think the system (software or usage paradigm) they originally started using is better than others.The tools go back on the shelf, mostly unused, for a number of reasons, not just the baby-duck syndrome. — 1993