The ornamental designs for a toiletbowl, as shown and described in the accompanying drawings.
FIG. 1 is a front view of a toilet bowl;
FIG. 2 is a top view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a bottom view thereof;
FIG. 6 is a left side view thereof; and,
FIG. 7 is a perspective view thereof.
The broken line showing of the toilet bowl is for the purpose of illustrating environmental structure and forms no part of the claimed design. The broken line(s) which define the bounds of the claimed design form no part thereof.