The ornamental design for a catscratcherlounger, as shown and described.
FIG. 1 is a top front perspective view of a cat scratcher lounger, showing my new design;
FIG. 2 is a front view of my cat scratcher lounger of FIG. 1, the rear view being identical to the front view shown;
FIG. 3 is a left side view of my cat scratcher lounger of FIG. 1, the right side view being identical to the left side shown; and,
FIG. 4 is a top view of my cat scratcher lounger of FIG. 1.
The broken line cats in FIG. 1 depict environment only and form no part of the claimed design. The cat scratcher lounger is shown with a symbolic break in its width in FIGS. 1, 3 and 4. The appearance of any portion of the article between the break lines forms no part of the claimed design.