The ornamental design for a dippingcup with lip, as shown and described.
FIG. 1 is a perspective view of a dipping cup with a lip;
FIG. 2 is a top plan view of the dipping cup of FIG. 1;
FIG. 3 is a bottom plan view of the dipping cup of FIG. 1;
FIG. 4 is a front elevational view thereof; and,
FIG. 5 is a side elevational view thereof.
The ornamental design which is claimed is shown in solid lines in the drawings. Any broken lines in the drawings are for illustrative purposes only and form no part of the claimed design.