Although it remains a mystery to date who the author and composer was, "We Wish You a Merry Christmas" is tied to Arthur Warrell who arranged the tune for his group "Bristol University Madrigal Singers" in 1935, and subsequently performed it at a concert leading to its mass popularity. It was in 1939, when Arthur passed away,that he was granted the copyright to the carol.
The song is predominantly used as a greeting, reflecting a festive and cheeky teasing, but has a subtle emphasis of the dynamic between the wealthy and the needy during the Victorian era. The lines "bring us some figgy pudding, bring it right here, we won't go until we get some," actually refer to the treats that the carolers often received as payment and the fact that they would continue singing until they were rewarded.
A huge number of artists have recorded the carol along with various symphonies and choruses through history!
Read more of its origin at: https://galaxymusicnotes.com/pages/about-we-wish-you-a-merry-christmas