Happy new year, again! From the Ukrainian American Society of Texas:
Malanka is a Ukrainian folk holiday celebrated on January 13th, which is New Year’s Eve in accordance with the Julian calendar. Malanka commemorates the feast day of St. Melania. On this night in Ukraine, carolers traditionally went from house to house playing pranks or acting out a small play (similar to “Vertep” — see above), with a bachelor dressed in women’s clothing leading the troop. Malanka caps off the festivities of the Christmas holidays, and is often the last opportunity for partying before the solemn period of Lent which precedes Easter.