- St Col man's girdle has lost its virtue
- obsoletethere has been extramarital copulationThe mythical but magical garment encircled only those who were chaste. The euphemism was used in 1890 when Parnell's adultery with Katie O'Shea, which had been widely known in political circles but not publicized, was exposed in open court, thereby ruining his career.
How not to say what you mean: A dictionary of euphemisms. R. W. Holder. 2014.