What is "tiptoe mirth"

Tiptoe \Tip"toe`\, a.

1. Being on tiptoe, or as on tiptoe; hence, raised as high as possible; lifted up; exalted; also, alert.

   Night's candles are burnt out, and jocund day Stands tiptoe on the misty mountain tops.
   --Shak.

   Above the tiptoe pinnacle of glory.
   --Byron.

2. Noiseless; stealthy. ``With tiptoe step.''
   --Cowper.

   Tiptoe mirth, the highest degree of mirth.
   --Sir W. Scott.

n. (context archaic English) Great hilarity; the highest degree of mirth.