The Collaborative International Dictionary of English v.0.48:

Puckfist \Puck"fist`\, n.
   A puffball.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Puffball \Puff"ball`\, n. (Bot.)
   A kind of ball-shaped fungus (Lycoperdon giganteum, and
   other species of the same genus) full of dustlike spores when
   ripe; -- called also bullfist, bullfice, puckfist,
   puff, and puffin.
   [1913 Webster]