We claim the ornamental design for a drinking glass, as shown and described.
FIG. 1 is a right view of a drinking glass in accordance with our new design;
FIG. 2 is a left view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a top view thereof; and,
FIG. 6 is a bottom view thereof.
The substantially vertical shade lines in some embodiments are a drawing convention used to illustrate contours of the drinking glass and should not be viewed as surface ornamentation.
The broken lines in the drawings illustrate the portions of the drinking glass that form no part of the claimed design.