old timer's disease UK /ˌəʊl(d)ˌtaɪməz dɪˈziːz/US /ˌoʊl(d)ˌtaɪməɹz dəˈziz/ noun1 •(slang, offensive) Eggcorn of Alzheimer's disease (“a disorder involving loss of mental functions resulting from brain tissue changes”).