What does the word rhubarb mean?

Usage examples for rhubarb

  1. If they will not obey these, then the true rhubarb to cure them is force. – Historical Introductions to the Symbolical Books of the Evangelical Lutheran Church by Friedrich Bente
  2. But rhubarb is the most odious pie of all, in my judgment. – The Siege of the Seven Suitors by Meredith Nicholson