mubble-fubbles

noun[plural only]1

1. •
   (informal, no longer used) The doldrums; the blahs; a downer; a mood of depression, dejection or melancholy.

   • Ile make him pull his powting croscloath ouer his beetle browes for melancholie, and then my next booke, shall be Martin in his mubble fubbles. — 1589