sucre bleu

exclamation1

1. •
   (informal, humorous) Expressing anger or surprise.

   • 2/17/1977, Robert J. Tobin, Time Magazine-Letters to the Editor https://archive.today/20130630104459/http://www.time.com/time/magazine/article/0,9171,914748-3,00.html Sucre bleu! Louis Bechereau will be sure to wreak his Gallic spleen in that Great Aerodrome in the Sky…