The Collaborative International Dictionary of English v.0.48:

Bambocciade \Bam*boc`ci*ade"\, n. [It. bambocciata, fr.
   Bamboccio a nickname of Peter Van Laer, a Dutch genre
   painter; properly, a child, simpleton, puppet, fr. bambo
   silly.] (Paint.)
   A representation of a grotesque scene from common or rustic
   life.
   [1913 Webster]