The ornamental design for a trashbag dispensing apparatus, as shown and described.
FIG. 1 is a front perspective view of a trash bag dispensing apparatus showing my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a right side elevation view thereof;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a front perspective view shown in its environment thereof; and,
FIG. 9 is a cross sectional view of FIG. 8 along line 9-9 thereof and showing a roll of trash bags in broken lines and a trashcan in broken lines.
The broken line showing of parts of the drawings is included for the purpose of illustrating use and environment and forms no part of the claimed design.