The ornamental design for a tailgateveil, as shown and described.
FIG. 1 is a front elevation view of a tail gate veil showing my new design;
FIG. 2 is a rear elevation view thereof;
FIG. 3 is a left side elevation view thereof shown in the context of a vehicle, the broken lines depicting an exemplary vehicle which is environmental subject matter only and forms no part of the claimed design;
FIG. 4 is a right side elevation view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof; and,
FIG. 7 is a perspective view thereof.
The broken lines depicting an exemplary vehicle with an open lift gate in FIG. 3 depicts environmental subject matter only and forms no part of the claimed design.