Heart Punch 

a swift blow directly to the region surrounding the heart, solicited by any provocation whatsoever, delivered in a playful and/or violent manner.

that little bitch deserved that heart punch.

Heart Punch by 307leland November 13, 2004

Heart Punch 

That feeling of dread you get when something genuinely terrible happens.
The way your heart slips a beat and you feel absolutely horrible.

I felt the heart punch when she said she didn't love me anymore.

"Hey, did you hear about that car accident?" / "Yeah, I was there; it was a real heart punch."

Heart Punch by MeatSocks June 24, 2016

Punched in the heart 

It means you're mentally hurt like jealous or sad and you can feel the pain in your heart.

Her: *sees crush*
Him: *texting another girl from across the room; making eye contact and smiling*
Her: *gets jealous and gets punched in the heart*

Punched in the heart by sadyuki November 7, 2019