meaning of the french phrase sacre bleu
Report Abuse. 1  Sacre Bleu. 2  This Site Might Help You. 3  It quite literally means sacred blue and makes reference to the garments worn by Mary, the mother of Christ.  Sacre Bleu! means 'holy blue', literally ... in other words Good Heavens! but it's just a little bit stronger that the English version. Most swear words proper (rather than expletives) started out life as a prayer or a promise on something holy.