When a girl is so angelically beautiful yet also devilishly seductive that seeing her picture gives a man a boner and also brings him to tears.
1.) Dude: The first time I saw you, you gave me a mean boneheart. I think I'm in love.
Chick: That's so sweet!
2.) That substitute teacher is so fine it's embarrassing. If I see her in public, I start to tear up, and also get an erection that lasts over 4 hours. My doctor says it's just a boneheart and it's nothing to worry about.
The act of giving a chick the beef-steak while your hand is tucked neatly in your shirt or vest.
Last week I took this girl out, we had some wine and a meal, then I took her back to my place and gave her the old Napolean Bonerpart. You should have been there, it was classy.