Slowvember noun [C, usually S]
UK /sləʊˈvem.bər/ US /sloʊˈvem.bər/
a movement that encourages people not to spend money excessively during the Christmas season, especially in a way that is harmful to the environment

Originally a creative challenge, compelling artists to spend the whole month slowly crafting something beautiful, the concept of Slowvember has more recently been adopted by green-thinking retailers. Thus the aim of Slowvember is to stop before you shop and support sustainable fashion, specifically in the face of Black Friday and the manufactured hype of over-consumerism.
[lerinslondon.com, 4 November 2022]

See also Black Friday

Christmas creep noun [U]
/ˈkrɪs.məs ˌkriːp/
the trend where Christmas-related goods, music, advertising etc. appear earlier every year

A Guardian analysis shows that the Grinch-like grumble that “Christmas is getting earlier every year” is actually justified. Figures from major supermarkets, local news bulletins and the UK Top 40 charts confirm what members of the public have long suspected: that the slow and steady takeover of the calendar by Christmas-themed items, songs and adverts – a phenomenon known as “Christmas creep” – is in fact real.
[theguardian.com, 28 October 2024]

Thanksmas noun [C]
/ˈθæŋks.məs/
a celebration that takes place on a date between Thanksgiving and Christmas

Thanksmas is a great occasion to bring family together. With a big family, expanded by in-laws, you may have many Thanksgiving or Christmas day invitations vying for your RSVP. Having a Thanksmas party is a great way to see those you won’t be able to see on Thanksgiving or Christmas.
[dailymom.com, no date]

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