a day on which contributions to a fund are solicited, each contributor receiving a tag.
Origin of tag day
First recorded in 1905–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for tag day
Historical Examples of tag day
Neither of the girls regretted their promise to help with the tag-day sale, for the cause was a worthy one.The Clock Strikes Thirteen
Mildred A. Wirt