The Collaborative International Dictionary of English v.0.48:

Bladder \Blad"der\, v. t. [imp. & p. p. Bladdered; p. pr. &
   vb. n. Bladdering.]
   1. To swell out like a bladder with air; to inflate. [Obs.]
      --G. Fletcher.
      [1913 Webster]

   2. To put up in bladders; as, bladdered lard.
      [1913 Webster]