The ornamental design for an anatomically contoured undergarmentdisplaypillow, as shown and described.
FIG. 1 is a perspective view of an anatomically contoured undergarment display pillow, showing my new design, the broken lines showing the undergarment are for environmental purposes only and form no part of the claimed design;
FIG. 2 is a rear perspective view;
FIG. 3 is a front view show without the undergarment;
FIG. 4 is a rear perspective view without the undergarment;