In Britain, at the start of each New Year, Many people make a resolution to go on a diet, in order to shed weight following excess eating and drinkin over the Christmas and New Year breaks. I'm not sure if the same applies in North America and elsewhere.
"A New Year's Diet,"
Word Ways: Vol. 45
, Article 19.
Available at: http://digitalcommons.butler.edu/wordways/vol45/iss1/19