The ornamental design for a beanbagchair, as shown and described.
FIG. 1 is a top perspective view of a bean bag chair showing my new design; FIG. 2 is a bottom perspective view thereof; FIG. 3 is a top plan view thereof; FIG. 4 is a bottom plan view thereof; FIG. 5 is a front elevational view thereof; FIG. 6 is a back elevational view thereof; FIG. 7 is a right side elevational view thereof; and, FIG. 8 is a left side elevational view thereof.
The broken lines in the drawings depict stitching and form part of the claimed design.