The Collaborative International Dictionary
Bladdering
Bladder \Blad"der\, v. t. [imp. & p. p. Bladdered; p. pr. & vb. n. Bladdering.]
To swell out like a bladder with air; to inflate. [Obs.]
--G. Fletcher.To put up in bladders; as, bladdered lard.
Wiktionary
bladdering
vb. (present participle of bladder English)