- Tag day is a charity fundraising day where anyone who makes a contribution to the charity is given a tag.
An example of tag day is a charity event to raise money for cancer where all donors get a pink ribbon tag.
A woman displays the ribbon she received after attending a tag day.
a day on which money is publicly solicited as for some charity, each contributor being given a tag
A day on which collectors for a charitable fund solicit contributions, giving each contributor a tag.