creeping crud
n.— «Mel Foster offered “Creeping Crud” but it was rejected by the observer as “too mushy.” Then Perry said, “Well, why don’t we just call you…[an obscenity], and everybody laughed.» —by Howard W. Polsky Cottage Six: The Social System of Delinquent Boys in Residential Treatment , 1962. (source: Double-Tongued Dictionary)