The ornamental design for a drywallmudapplicator, as shown and described.
FIG. 1 is an exploded perspective view of a drywall mud applicator showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a right side elevational view thereof, the left side elevational view being a mirror image thereof.
FIGS. 1 and 6 show the claimed design in it's environmental use. The broken lines showing of bag cover and rubber band are for illustrative purpose only and form no part of the claimed design.