The ornamental design for a cuebag, as shown and described.
FIG. 1 is a perspective view of a cue bag showing my new design;
FIG. 2 is a front view thereof:
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken lines showing the upper side bag in FIG. 1, FIG. 2, FIG. 4 and FIG. 5 are included for illustrative purposes and form no part of the claimed design.