The ornamental design for a wavygrippoolcue, as shown.
FIG. 1 is a side elevational view of the wavy grip pool cue of my design which is identical from all sides, with the top section of the pool cue shown in broken lines;
FIG. 2 is a bottom view thereof;
FIG. 3 is a side elevational view of the wavy grip pool cue of my design which is identical from all sides, with the top section of the pool cue removed; and,
FIG. 4 is a top view thereof.
The broken lines are shown for illustrative purposes only and form no part of the claimed invention.