noun
working on a day off to make up for lost time or to make an impression
Refers to the act of working on a holiday or day off, often to catch up on work or to appear diligent. The term carries a slightly negative connotation, implying unnecessary or showy effort.
彼の節句働きにはみんな呆れている。
Everyone is fed up with his working on days off just to show off.
連休中に節句働きし
I worked during the consecutive holidays to finally get the documents sorted out.