expression, noun
seven-day workweek; working every day
Jocular expression used to describe a relentless work schedule with no days off, literally 'Mon-Mon-Tue-Wed-Thu-Fri-Fri'. Often used in workplace or military contexts.
今週は月月火水木金金で、休みがない。
This week is a seven-day workweek with no days off.
あの部署はいつも月月火水木金金だ。
That department always works every day of the week.
A humorous phrase formed by repeating the kanji for Monday (月) and Friday (金) in the sequence of Japanese weekday abbreviations, implying a work schedule that extends through the weekend.