to flirt with someone; to make a romantic advance at someone. (This often has sexual implications.)
I was shocked when Ann made a pass at me.I think Bob was making a pass at me, but he did it very subtly.
Idiom
make a pass at someonemake a pass at (someone)
to act toward someone in a way that shows a sexual interest in them.
It seems as if those boys can't think of much more than fast cars and making passes at girls.
make a pass at (one)
To make sexual advances toward or propositions to one; to hit on one. Do you think she was making a pass at me, or was she just being nice?I'm tired of complete strangers making a pass at me when I go out.
make a pass at someone
INFORMAL
If someone makes a pass at you, they try to begin a romantic or sexual relationship with you. Nancy wasn't sure if Dirk was making a pass at her.