The Collaborative International Dictionary of English v.0.48:

Outgush \Out"gush`\, n.
   A pouring out; an outburst.
   [1913 Webster]

         A passionate outgush of emotion.         --Thackeray.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Outgush \Out*gush"\ (out*g[u^]sh"), v. i.
   To gush out; to flow forth.
   [1913 Webster]