To make something about sex or to think about something in a sexual way.
The word 'sexualize' can make people think about being careful and respectful.
Examples:
They sexualize the clothes for adults.
It's not good to sexualize kids' toys.
She doesn't want to sexualize her work.
I don't think we should sexualize the party.
Some people sexualize everything!
We shouldn't sexualize things that are not for that.