Millennials are the generation that's currently 18-34 years old, born after 1980 and reaching adulthood in the digital age, Pew Research says.
The center has a whole section on millennials, including a March 2014 data set that described them as "relatively unattached to organized politics and religion, linked by social media, burdened by debt, distrustful of people, in no rush to marry— and optimistic about the future."
And maybe more important to keep in mind during the holiday season – they're also way more likely to take a present they received and regift it to someone else.
It found one-third of the millennials they spoke with said they expect to regift one or two items this year.
They're also the most-likely generation to regift, the study says.
(The research was done via a survey of 1,000 U.S. adults, ages 18-65, and weighted to current U.S. census data.)
Business Insider spoke with Jason Dorsey, one of the study's co-authors, who said millennials tend to regift "out of both necessity and practicality."
But should people regift?
Only 13 percent said they would never regift something.
Fortune says there seems to be less stigma attached to regifting. They cited a 2014 American Express survey that found 76 percent of respondents said it was an "acceptable practice." About four of every 10 respondents said they'd regifted in the past year.
Emily Post is less keen on the whole regifting thing, saying it's "not really" OK to do and adding gifts "should be recycled only rarely" and only under the certain conditions the site lists.
As Consumerist notes, John Oliver has some advice (though note this is an HBO show, so the clip below is not PG), including making sure you regift to someone who doesn't know the person who originally gave you the gift. Also, personalize it – like writing a note – to help it seem less regifted.