In the United States and elsewhere, a Hallmark holiday is a holiday that is perceived to exist primarily for commercial purposes rather than to commemorate a traditionally or historically significant event.
Background The name comes from Hallmark Cards, a privately owned American company, that benefits from such manufactured events through sales of greeting cards and other items.
Holidays that have been referred to as "Hallmark holidays"
Boss's Day Mother's Day Father's Day Friendship Day Grandparents Day Groundhog Day National Doctors' Day National Nurses' Day Valentine's Day
Sources:
See also
Anna Jarvis and Mother's Day Christmas in July in the Northern Hemisphere Valentine's Day List of food days
References
Further reading