rob the cradle
idiomPart ofcradle
rob the cradle — idiom
1. To have a romantic or sexual relationship with someone who is much younger than
1.idiom
Definition
To have a romantic or sexual relationship with someone who is much younger than oneself, especially when the age gap is considered socially questionable.
Example
The neighbours whispered that the forty-year-old lawyer was robbing the cradle by dating a twenty-year-old student.
When Tariro introduced his new girlfriend at the family dinner, his older sister teased him about robbing the cradle.