The ornamental design for a toss game, as shown and described.
FIG. 1 is a perspective view of a toss game showing my new design;
FIG. 2 is a front view thereof, a rear view, a left side view and a right side view being mirror images, game pieces are shown removed for ease of illustration;
FIG. 3 is a top view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a top view of a game piece of the toss game; and,
FIG. 6 is a right side view thereof, a left side view being a mirror image.