overtag

To place too many tags on.

But whatever the approach, all manufacturers are agreed that there can be a danger in overtagging a garment. "Too many tags — more than two — are often confusing and distracting to consumers." said Dick Harris of B.W Harris.

To write a graffiti tag over another.

Behind him was gang-turf graffiti, elaborately spray-painted, transforming the wall into a billboard. One with a very clear message. The graffiti was pristine. That it had not been overtagged was a bold proclamation that the wall stood within undisputed territory.