おにのいぬまにせんたく

鬼のいぬまに洗濯

表記・読み：鬼の居ぬ間に洗濯・鬼のいぬ間に洗濯・おにのいぬまにせんたく

1. 1

   playing while the cat is away; taking a break while the boss is out; doing what one wants when one is (finally) alone; relaxing while the demon is out

   expressions (phrases, clauses, etc.)idiomatic expression