cradle snatcher

noun

1. informal,  someone who marries or has an affair with a much younger person

Example Sentences

The English press labeled him a “cradle snatcher.”

From Washington Post

When Emma asked after William at a Prince's Trust gig later, Prince Charles reportedly quipped: "Don't be a cradle snatcher."

From BBC

"I was a cradle snatcher," he notes gleefully of the woman he met when she was 17.

From Time Magazine Archive

I ask' all over the neighbourhood, an' not a woman but looked on me for a cradle snatcher—thought I wanted to abduct her child away from her.

From Project Gutenberg