To make a false excuse, typically feigning an illness of one's mother, in order to pursue a personal desire, such as returning home to one's wife; to act hypocritically or pretend.
他工作时总是借口身体不适或家人有事，实际上是想早点回家休息，这真是思妇病母。
He always used excuses like feeling unwell or family matters at work when he just wanted to leave early, which is truly a case of feigning illness to achieve one's personal aims.
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