To toss up

Toss \Toss\, v. i.
   1. To roll and tumble; to be in violent commotion; to write;
      to fling.
      [1913 Webster]

            To toss and fling, and to be restless, only frets
            and enrages our pain.                 --Tillotson.
      [1913 Webster]

   2. To be tossed, as a fleet on the ocean. --Shak.
      [1913 Webster]

   {To toss for}, to throw dice or a coin to determine the
      possession of; to gamble for.

   {To toss up}, to throw a coin into the air, and wager on
      which side it will fall, or determine a question by its
      fall. --Bramsion.
      [1913 Webster]