Definition of 二十日正月 (はつかしょうがつ)

noun
twentieth day of the first month (end of New Year celebrations, upon which remaining New Year's food is eaten, decorations are stowed away, etc.)
Related Kanji
two, two radical (no. 7)
ten
day, sun, Japan, counter for days
correct, justice, righteous, 10**40
month, moon