The ornamental design for a drinkingglass, as shown and described.
FIG. 1 is a top perspective view of a drinking glass in accordance with the claimed ornamental design;
FIG. 2 is a left side view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is bottom view thereof.
The short-dashed broken lines in FIGS. 1-4 illustrate portions of the drinking glass that form no part of the claimed design, whereas the surfaces immediately adjacent to the short-dashed broken lines do form part of the claimed design. The short-dashed broken lines in FIGS. 6 and 7, surfaces within them, and adjacent surfaces form no part of the claimed design. The long-short-long dashed broken lines in FIGS. 1-5 and 7 illustrate a boundary of the claimed design and form no part of the claimed design.